Attachment RadHaz Reports

This document pretains to SES-MFS-20140210-00037 for Modification w/ Foreign Satellite (earth station) on a Satellite Earth Station filing.

IBFS_SESMFS2014021000037_1034645

EXHIBIT WITH RADIATION HAZARD REPORTS INCLUDES RADIATION HAZARD REPORTS FOR: GENERAL DYNAMICS SATCOM 4.8 METER KU—BAND HUB ANTENNA (Model 037974) SEA TEL 2.4 METER KU—BAND ESV ANTENNA (Model 9797 and 9711) INTELLIAN 2.4 METER KU—BAND ESV ANTENNA (MODEL v240K)

CGENERAAL Diwfmict sfcom 0379 Radiation Hazard Report Page 1 of 5 Analysis of Non—lonizing Radiation for a 4.8—Meter Earth Station System This report analyzes the non—ionizing radiation levels for a 4.8—meter earth station system. The analysis and calculations performed in this report comply with the methods described in the FCC Office of Engineering and Technology Bulletin, No. 65 first published in 1985 and revised in 1997 in Edition 97—01. The radiation safety limits used in the analysis are in conformance with the FCC R&O 96—326. Bulletin No. 65 and the FCC R&O specifies that there are two separate tiers of exposure limits that are dependant on the situation in which the exposure takes place and/or the status of the individuals who are subject to the exposure. The Maximum Permissible Exposure (MPE) limits for persons in a General Population/Uncontrolled environment are shown in Table 1. The General Population/Uncontrolled MPE is a function of transmit frequency and is for an exposure period of thirty minutes or less. The MPE limits for persons in an Occupational/Controlled environment are shown in Table 2. The Occupational MPE is a function of transmit frequency and is for an exposure period of six minutes or less. The purpose of the analysis described in this report is to determine the power flux density levels of the earth station in the far—field, near—field, transition region, between the subreflector or feed and main reflector surface, at the main reflector surface, and between the antenna edge and the ground and to compare these levels to the specified MPEs. Table 1. Limits for General Population/Uncontrolled Exposure (MPE) Frequency Range (MHz) Power Density (mW/icm*) 30—300 0.2 300—1500 Frequency (MHz)*(0.8/1200) 1500—100,000 1.0 Table 2. Limits for Occupational/Controlled Exposure (MPE) Frequency Range (MHz) Power Density (mW/icm*) 30—300 1.0 300—1500 Frequency (MHz)*(4.0/1200) 1500—100,000 5.0 Table 3. Formulas and Parameters Used for Determining Power Flux Densities Parameter Symbol Formula Value Units Antenna Diameter D Input 4.8 m Antenna Surface Area Asurface x D/ 4 18.10 m Subreflector Diameter Dar Input 35.6 cm Area of Subreflector Asr x Ds "/4 995.38 cm* Frequency F Input 14250 MHz Wavelength A 300 / F 0.021053 m Transmit Power P Input 400.00 W Antenna Gain (dBi) Ges Input 55.2 dBi Antenna Gain (factor) G 1 ces 331131.1 n/a Pi T Constant 3.1415927 n/a Antenna Efficiency m GM/(r°D") 0.65 n/a

Exhibit Radiation Hazard Report Page 2 of 5 1. Far Field Distance Calculation The distance to the beginning of the far field can be determined from the following equation: Distance to the Far Field Region R; = 0.60 D/A (1) = 656.6 m The maximum main beam power density in the far field can be determined from the following equation: On—Axis Power Density in the Far Field S¢ GP/(4 1 R;2) (2) 24.445 Wim* 2.445 mWicm* 2. Near Field Calculation Power flux density is considered to be at a maximum value throughout the entire length of the defined Near Field region. The region is contained within a cylindrical volume having the same diameter as the antenna. Past the boundary of the Near Field region, the power density from the antenna decreases linearly with respect to increasing distance. The distance to the end of the Near Field can be determined from the following equation: Extent of the Near Field Ry = D/ (4 A) (3) = 273.6 m The maximum power density in the Near Field can be determined from the following equation: Near Field Power Density Sn = 16.047 P / (¢ D) (4) = 57.066 W/im* = 5.707 mW/cm* 3. Transition Region Calculation The Transition region is located between the Near and Far Field regions. The power density begins to decrease linearly with increasing distance in the Transition region. While the power density decreases inversely with distance in the Transition region, the power density decreases inversely with the square of the distance in the Far Field region. The maximum power density in the Transition region will not exceed that calculated for the Near Field region. The power density calculated in Section 1 is the highest power density the antenna can produce in any of the regions away from the antenna. The power density at a distance R, can be determined from the following equation: Transition Region Power Density S = SRar/ R (5) = 5.707 mW/cm*

Exhibit Radiation Hazard Report Page 3 of 5 4. Region between the Main Reflector and the Subreflector Transmissions from the feed assembly are directed toward the subreflector surface, and are reflected back toward the main reflector. The most common feed assemblies are waveguide flanges, horns or subreflectors. The energy between the subreflector and the reflector surfaces can be calculated by determining the power density at the subreflector surface. This can be determined from the following equation: Power Density at the Subreflector Ss, 2 4000 P / Ag, (6) = 1607.423 mW/cm* 5. Main Reflector Region The power density in the main reflector is determined in the same manner as the power density at the subreflector. The area is now the area of the main reflector aperture and can be determined from the following equation: Power Density at the Main Reflector Surface Ssurtace Z4 P / Asurtface (7) = 88.419 W/m" = 8.842 mW/icm* 6. Region between the Main Reflector and the Ground Assuming uniform illumination of the reflector surface, the power density between the antenna and the ground can be determined from the following equation: Power Density between Reflector and Ground Sy =P / Asurface (8) = 22.105 W/im* = 2.210 mW/icm*

Exhibit Radiation Hazard Report Page 5 of 5 8. Conclusions Based upon the above analysis, it is concluded that harmful levels of radiation may exist in those regions noted for the Uncontrolled (Table 4) and Controlled (Table 5) Environments. The antenna will be installed at Astrium Services Government‘s teleport facility in Southbury, Connecticut. The teleport is a gated and fenced facility with secured access in and around the proposed antenna. The earth station will be marked with the standard radiation hazard warnings, as well as the area in the vicinity of the earth station to inform those in the general population, who might be working or otherwise present in or near the direct path of the main beam. The applicant will ensure that the main beam of the antenna will be pointed at least one diameter away from any building, or other obstacles in those areas that exceed the MPE levels. Since one diameter removed from the center of the main beam the levels are down at least 20 dB, or by a factor of 100, these potential hazards do not exist for either the public, or for earth station personnel. Finally, the earth station‘s operating personnel will not have access to areas that exceed the MPE levels, while the earth station is in operation. The transmitter will be turned off during periods of maintenance, so that the MPE standard of 5.0 mw/cm**2 will be complied with for those regions in close proximity to the main reflector, which could be occupied by operating personnel. The applicant agrees to abide by the conditions specified in Condition 5208 provided below: Condition 5208 — The licensee shall take all necessary measures to ensure that the antenna does not create potential exposure ofhumans to radiofrequency radiation in excess ofthe FCC exposure limits defined in 47 CFR 1.1307(b) and 1.1310 wherever such exposures might occur. Measures must be taken to ensure compliance with limitsfor both occupational/controlled exposure andfor general population/uncontrolled exposure, as defined in these rule sections. Compliance can be accomplished in most cases by appropriate restrictions such asfencing. Requirementsfor restrictions can be determined by predictions based on calculations, modeling or byfield measurements. The FCC‘s OET Bulletin 65 (available on—line at www.fec.gov/oet/rfsafety) provides information on predicting exposure levels and on methodsfor ensuring compliance, including the use of warning and alerting signs andprotective equipmentfor worker.

EEA TE4797]/4711 LV Exhibit Radiation Hazard Report Page 1 of 5 Analysis of Non—lonizing Radiation for a 2.4—Meter Earth Station System This report analyzes the non—ionizing radiation levels for a 2.4—meter earth station system. The analysis and calculations performed in this report comply with the methods described in the FCC Office of Engineering and Technology Bulletin, No. 65 first published in 1985 and revised in 1997 in Edition 97—01. The radiation safety limits used in the analysis are in conformance with the FCC R&O 96—326. Bulletin No. 65 and the FCC R&O specifies that there are two separate tiers of exposure limits that are dependant on the situation in which the exposure takes place and/or the status of the individuals who are subject to the exposure. The Maximum Permissible Exposure (MPE) limits for persons in a General Population/Uncontrolled environment are shown in Table 1. The General Population/Uncontrolled MPE is a function of transmit frequency and is for an exposure period of thirty minutes or less. The MPE limits for persons in an Occupational/Controlled environment are shown in Table 2. The Occupational MPE is a function of transmit frequency and is for an exposure period of six minutes or less. The purpose of the analysis described in this report is to determine the power flux density levels of the earth station in the far—field, near—field, transition region, between the subreflector or feed and main reflector surface, at the main reflector surface, and between the antenna edge and the ground and to compare these levels to the specified MPEs. Table 1. Limits for General Population/Uncontrolled Exposure (MPE) Frequency Range (MHz) Power Density (mW/cm*) 30—300 0.2 300—1500 Frequency (MHz)*(0.8/1200) 1500—100,000 1.0 Table 2. Limits for Occupational/Controlled Exposure (MPE) Frequency Range (MHz) Power Density (mW/icm*) 30—300 1.0 300—1500 Frequency (MHz)*(4.0/1200) 1500—100,000 5.0 Table 3. Formulas and Parameters Used for Determining Power Flux Densities Parameter Symbol Formula Value Units Antenna Diameter D Input 2.4 m Antenna Surface Area Asurtace x D/ 4 4.52 m Feed Flange Diameter Dia Input 19.0 cm Area of Feed Flange Afa x D; *4 283.53 cm* Frequency F Input 14250 MHz Wavelength A 300 / F 0.021053 m Transmit Power P Input 84.14 W Antenna Gain (dBi) Ges Input 48.4 dBi Antenna Gain (factor) G 10ce"° 69984.2 n/a Pi T Constant 3.1415927 n/a Antenna Efficiency m GM/(RrD) 0.55 n/a

Exhibit Radiation Hazard Report Page 2 of 5 1. Far Field Distance Calculation The distance to the beginning of the far field can be determined from the following equation: Distance to the Far Field Region R; = 0.60 D/A (1) = 164.2 m The maximum main beam power density in the far field can be determined from the following equation: On—Axis Power Density in the Far Field S¢ GP/(4nRfi2) (2) 17.388 W/im 1.739 mW/cm* 2. Near Field Calculation Power flux density is considered to be at a maximum value throughout the entire length of the defined Near Field region. The region is contained within a cylindrical volume having the same diameter as the antenna. Past the boundary of the Near Field region, the power density from the antenna decreases linearly with respect to increasing distance. The distance to the end of the Near Field can be determined from the following equation: Extent of the Near Field Ry = D/ (4 A) (3) = 68.4 m The maximum power density in the Near Field can be determined from the following equation: Near Field Power Density Sar = 16.0n P / (1 D) (4) = 40.592 W/m* = 4.059 mW/cm* 3. Transition Region Calculation The Transition region is located between the Near and Far Field regions. The power density begins to decrease linearly with increasing distance in the Transition region. While the power density decreases inversely with distance in the Transition region, the power density decreases inversely with the square of the distance in the Far Field region. The maximum power density in the Transition region will not exceed that calculated for the Near Field region. The power density calculated in Section 1 is the highest power density the antenna can produce in any of the regions away from the antenna. The power density at a distance R, can be determined from the following equation: Transition Region Power Density S = Sn Rar/ R (5) = 4.059 mW/cm*

Exhibit Radiation Hazard Report Page 3 of 5 4. Region between the Feed Assembly and the Antenna Reflector Transmissions from the feed assembly are directed toward the antenna reflector surface, and are confined within a conical shape defined by the type of feed assembly. The most common feed assemblies are waveguide flanges, horns or subreflectors. The energy between the feed assembly and reflector surface can be calculated by determining the power density at the feed assembly surface. This can be determined from the following equation: Power Density at the Feed Flange S;a = 4000 P / Afa (6) = 1187.040 mW/cm* 5. Main Reflector Region The power density in the main reflector is determined in the same manner as the power density at the feed assembly. The area is now the area of the reflector aperture and can be determined from the following equation: Power Density at the Reflector Surface Ssurtace 7 4 P / Asurtace (7) = 74.396 W/im* = 7.440 mWi/ecm* 6. Region between the Reflector and the Ground Assuming uniform iHlumination of the reflector surface, the power density between the antenna and the ground can be determined from the following equation: Power Density between Reflector and Ground Sy P / Asurface (8) 18.599 W/m* 1.860 mW/cm*

Exhibit Radiation Hazard Report Page 4 of 5 7. Summary of Calculations Table 4. Summary of Expected Radiation levels for Uncontrolled Environment Calculated Maximum Radiation Power Density Level Region (mW/cm") Hazard Assessment 1. Far Field (Rg;= 164.2 m) S¢ 1.739 Potential Hazard 2. Near Field (R,; = 68.4 m) Sn 4.059 Potential Hazard 3. Transition Region (Ry; < R, < R;) S 4.059 Potential Hazard 4. Between Feed Assembly and Sta 1187.040 Potential Hazard Antenna Reflector 5. Main Reflector Ssurface 7.440 Potential Hazard 6. Between Reflector and Ground Sq 1.860 Potential Hazard Table 5. Summary of Expected Radiation levels for Controlled Environment Calculated Maximum Radiation Power Density Region Level (mW/cm*) Hazard Assessment ._1. Far Field (R;= 164.2 m) S¢ 1.739 Satisfies FCC MPE 2. Near Field (R,; = 68.4 m) Sn 4.059 Satisfies FCC MPE 3. Transition Region (Ry < R, < Rg) S; 4.059 Satisfies FCC MPE 4. Between Feed Assembly and Sta 1187.040 Potential Hazard Antenna Reflector 5. Main Reflector Ssurface 7.440 Potential Hazard 6. Between Reflector and Ground Sq 1.860 Satisfies FCC MPE It is the applicant‘s responsibility to ensure that the public and operational personnel are not exposed to harmful levels of radiation.

Exhibit Radiation Hazard Report — Page 5 of 5 8. Conclusions Based upon the above analysis, it is concluded that FCC RF Guidelines have been exceeded in the specified region(s) of the Uncontrolled (Table 4) and Controlled (Table 5) environments. The applicant proposes to comply with the Maximum Permissible Exposure (MPE) limits of 1.0 mW/cm**2 for the Uncontrolled Areas, and the MPE limits of 5.0 mW/cm**2 for the Controlled Areas. The earth station will be mounted aboard a ship, and it is recommended that the lower edge of the antenna should be at least 2 meters above the deck. If this is not the case, additional procedures will be instituted to ensure the safety of the Public in the vicinity of the antenna. The applicant will ensure that the main beam of the antenna will be pointed at least one diameter away from any buildings, or other obstacles in those areas that exceed the MPE levels. Since one diameter removed from the center of the main beam the levels are down at least 20 dB, or by a factor of 100, public safety will be ensured. The earth station will marked with the standard radiation hazard warnings, as well as the area in the vicinity of the earth station, to inform those in the general population, who may be working or otherwise present on the deck, and in or near, the main beam of the antenna. Finally, the earth station‘s operating personnel will not have access to areas that exceed the MPE levels, while the earth station is in operation. The transmitter will be turned off during periods of maintenance, so that the MPE standard of 5.0 mw/cm**2 will be complied with for those regions in close proximity to the main reflector, which could be occupied by operating personnel. The applicant agrees to abide by the conditions specified in Condition 5208 provided below: Condition 5208 — The licensee shall take all necessary measures to ensure that the antenna does not create potential exposure ofhumans to radiofrequency radiation in excess ofthe FCC exposure limits defined in 47 CFR 1.1307(b) and 1.1310 wherever such exposures might occur. Measures must be taken to ensure compliance with limitsfor both occupational/controlled exposure andfor general population/uncontrolled exposure, as defined in these rule sections. Compliance can be accomplished in most cases by appropriate restrictions such asfencing. Requirementsfor restrictions can be determined by predictions based on calculations, modeling or byfield measurements. The FCC‘s OET Bulletin 65 (available on—line at www.fec.gov/oet/rfsafety) provides information on predicting exposure levels and on methodsfor ensuring compliance, including the use of warning and alerting signs andprotective equipmentfor worker.

LNTELLIAN VYE k4 Radiation Hazard Report Page 1 of 5 Analysis of Non—lonizing Radiation for a 2.4—Meter Earth Station System This report analyzes the non—ionizing radiation levels for a 2.4—meter earth station system. The analysis and calculations performed in this report comply with the methods described in the FCC Office of Engineering and Technology Bulletin, No. 65 first published in 1985 and revised in 1997 in Edition 97—01. The radiation safety limits used in the analysis are in conformance with the FCC R&O 96—326. Bulletin No. 65 and the FCC R&O specifies that there are two separate tiers of exposure limits that are dependant on the situation in which the exposure takes place and/or the status of the individuals who are subject to the exposure. The Maximum Permissible Exposure (MPE) limits for persons in a General Population/Uncontrolled environment are shown in Table 1. The General Population/Uncontrolled MPE is a function of transmit frequency and is for an exposure period of thirty minutes or less. The MPE limits for persons in an Occupational/Controlled environment are shown in Table 2. The Occupational MPE is a function of transmit frequency and is for an exposure period of six minutes or less. The purpose of the analysis described in this report is to determine the power flux density levels of the earth station in the far—field, near—field, transition region, between the subreflector or feed and main reflector surface, at the main reflector surface, and between the antenna edge and the ground and to compare these levels to the specified MPEs. Table 1. Limits for General Population/Uncontrolled Exposure (MPE) Frequency Range (MHz) Power Density (mW/ecm") 30—300 0.2 300—1500 Frequency (MHz)*(0.8/1200) 1500—100,000 1.0 Table 2. Limits for Occupational/Controlled Exposure (MPE) Frequency Range (MHz) Power Density (mW/iem*) 30—300 1.0 300—1500 Frequency (MHz)*(4.0/1200) 1500—100,000 5.0 Table 3. Formulas and Parameters Used for Determining Power Flux Densities Parameter Symbo! Formula Value Units Antenna Diameter D Input 2.4 m Antenna Surface Area Asurtace x D/ 4 4.52 m* Feed Flange Diameter Dia Input 2.9 cm Area of Feed Flange Afa x D;4 /4 6.61 cm* Frequency F Input 14250 MHz Wavelength A 300 / F 0.021053 m Transmit Power P Input 72.44 W Antenna Gain (dBi) CGes Input 48.0 dBi Antenna Gain (factor) G 1 qCes"? 63095.7 n/a Pi T Constant 3.1415927 n/a Antenna Efficiency m GM/(R‘D") 0.49 n/a

Exhibit Radiation Hazard Report Page 2 of 5 1. Far Field Distance Calculation The distance to the beginning of the far field can be determined from the following equation: Distance to the Far Field Region Ry = 0.60 D* /A (1) = 164.2 m The maximum main beam power density in the far field can be determined from the following equation: B On—Axis Power Density in the Far Field S; = GP/(4 1 Ry*) (2) = 13.497 W/im* = 1.350 mW/cm* 2. Near Field Calculation Power flux density is considered to be at a maximum value throughout the entire length of the defined Near Field region. The region is contained within a cylindrical volume having the same diameter as the antenna. Past the boundary of the Near Field region, the power density from the antenna decreases linearly with respect to increasing distance. The distance to the end of the Near Field can be determined from the following equation: Extent of the Near Field Ry = D/ (4 A) (3) = 68.4 m The maximum power density in the Near Field can be determined from the following equation: Near Field Power Density S =16.071 P /( D) (4) = 31.508 W/m* = 3.151 mW/cm* 3. Transition Region Calculation The Transition region is located between the Near and Far Field regions. The power density begins to decrease linearly with increasing distance in the Transition region. While the power density decreases inversely with distance in the Transition region, the power density decreases inversely with the square of the distance in the Far Field region. The maximum power density in the Transition region will not exceed that calculated for the Near Field region. The power density calculated in Section 1 is the highest power density the antenna can produce in any of the regions away from the antenna. The power density at a distance R, can be determined from the following equation: Transition Region Power Density St = SRat/ R; (5) = 3.151 mW/cm*

Exhibit Radiation Hazard Report Page 3 of 5 4. Region between the Feed Assembly and the Antenna Reflector Transmissions from the feed assembly are directed toward the antenna reflector surface, and are confined within a conical shape defined by the type of feed assembly. The most common feed assemblies are waveguide flanges, horns or subreflectors. The energy between the feed assembly and reflector surface can be calculated by determining the power density at the feed assembly surface. This can be determined from the following equation: Power Density at the Feed Flange S; = 4000 P / Afy (6) = 48868.476 mW/cm* 5. Main Reflector Region The power density in the main reflector is determined in the same manner as the power density at the feed assembly. The area is now the area of the reflector aperture and can be determined from the following equation: Power Density at the Reflector Surface Ssurtace = 4 P / Asurtace (7) = 64.051 W/im* = 6.405 mW/cm* 6. Region between the Reflector and the Ground Assuming uniform illumination of the reflector surface, the power density between the antenna and the ground can be determined from the following equation: Power Density between Reflector and Ground Syg =P / Agurtace (8) = 16.013 W/im* = 1.601 mW/em*

Exhibit Radiation Hazard Report Page 4 of 5 7. Summary of Calculations Table 4. Summary of Expected Radiation levels for Uncontrolled Environment Calculated Maximum Radiation Power Density Level Region (mW/em?) Hazard Assessment 1. Far Field (R= 164.2 m) S¢ 1.350 Potential Hazard 2. Near Field (R,; = 68.4 m) Sn 3.151 Potential Hazard 3. Transition Region (R; < R, < Ry) S; 3.151 Potential Hazard 4. Between Feed Assembly and Sia —43868.476 Potential Hazard Antenna Reflector 5. Main Reflector Ssurtace 6.405 Potential Hazard 6. Between Reflector and Ground Sy 1.601 Potential Hazard Table 5. Summary of Expected Radiation levels for Controlled Environment Calculated Maximum Radiation Power Density Region Level (mW/cm") Hazard Assessment 1. Far Field (Ry = 164.2 m) Sy 1.350 Satisfies FCC MPE 2. Near Field (R,; = 68.4 m) Snat 3.151 Satisfies FCC MPE 3. Transition Region (R,; < R,< R;) St 3.151 Satisfies FCC MPE 4. Between Feed Assembly and Sia 43868.476 Potential Hazard Antenna Reflector 5. Main Reflector Ssurtace 6.405 Potential Hazard 6. Between Reflector and Ground Sy 1.601 Satisfies FCC MPE It is the applicant‘s responsibility to ensure that the public and operational personnel are not exposed to harmful levels of radiation.

Exhibit Radiation Hazard Report Page 5 of 5 8. Conclusions Based upon the above analysis, it is concluded that FCC RF Guidelines have been exceeded in the specified region(s) of the Uncontrolled (Table 4) and Controlled (Table 5) environments. The applicant proposes to comply with the Maximum Permissible Exposure (MPE) limits of 1.0 mW/cm**2 for the Uncontrolled Areas, and the MPE limits of 5.0 mW/cm**2 for the Controlled Areas. The earth station will be mounted aboard a ship, and it is recommended that the lower edge of the antenna should be at least 2 meters above the deck. If this is not the case, additional procedures will be instituted to ensure the safety of the Public in the vicinity of the antenna. The applicant will ensure that the main beam of the antenna will be pointed at least one diameter away from any buildings, or other obstacles in those areas that exceed the MPE levels. Since one diameter removed from the center of the main beam the levels are down at least 20 dB, or by a factor of 100, public safety will be ensured. The earth station will marked with the standard radiation hazard warnings, as well as the area in the vicinity of the earth station, to inform those in the general population, who may be working or otherwise present on the deck, and in or near, the main beam of the antenna. Finally, the earth station‘s operating personnel will not have access to areas that exceed the MPE levels, while the earth station is in operation. The transmitter will be turned off during periods of maintenance, so that the MPE standard of 5.0 mw/cm**2 will be complied with for those regions in close proximity to the main reflector, which could be occupied by operating personnel. The applicant agrees to abide by the conditions specified in Condition 5208 provided below: Condition 5208 — The licensee shall take all necessary measures to ensure that the antenna does not create potential exposure of humans to radiofrequency radiation in excess of the FCC exposure limits defined in 47 CFR 1.1307(b) and 1.1310 wherever such exposures might occur. Measures must be taken to ensure compliance with limits for both occupational/controlled exposure andfor general population/uncontrolled exposure, as defined in these rule sections. Compliance can be accomplished in most cases by appropriate restrictions such as fencing. Requirements for restrictions can be determined by predictions based on calculations, modeling or by field measurements. The FCC‘s OET Bulletin 65 (available on—line at www.fec.gov/oet/rfsafety) provides information on predicting exposure levels and on methods for ensuring compliance, including the use of warning and alerting signs and protective equipmentfor worker.


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Document Modified: 2019-04-17 11:25:29
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