HILLAFBI36-128 — Environmental Differential And Hazard Pay

HILLAFBI36-128 governs the Environmental Differential Pay and Hazardous Duty Pay program at Hill Air Force Base.

Search HILLAFBI36-128

  • Publication number: HILLAFBI36-128
  • Title: ENVIRONMENTAL DIFFERENTIAL AND HAZARD PAY
  • Date: 2025-09-16

View HILLAFBI36-128 on armypubs.army.mil


It distinguishes HDP for General Schedule employees from EDP for Federal Wage System employees. The instruction sets requirements for reviewing, approving, funding, administering, requesting, and terminating differential pay.

Applies to: It is applicable to all appropriated fund employees serviced by the Civilian Personnel Section (CPS), 75 FSS/FSCA.

Topics covered

  • Environmental Differential Pay
  • Hazardous Duty Pay
  • General Schedule employees
  • Federal Wage System employees
  • Unusual hazards and physical hardships
  • EDP/HDP funding and approval
  • HILLAFB Form 683

Questions and answers

Who is eligible for Hazardous Duty Pay?

Hazardous Duty Pay (HDP) is for General Schedule (GS) employees. (paragraph 1)

Who is eligible for Environmental Differential Pay?

Environmental Differential Pay (EDP) is for Federal Wage System (FWS) employees.

How is Hazardous Duty Pay calculated for GS employees?

When a GS employee performs a duty for which an HDP has been authorized, the agency must pay the HDP for all hours in which the employee is in a pay status on the day the duty is performed per 5 CFR 550.905.

Can employees receive pay for potential or incidental exposure to a hazard?

May not be paid to an employee who has been exposed incidentally to a hazard such as a virulent biological like COVID-19 in a manner not directly associated with the performance of assigned duties. There is no authority to pay for the potential for exposure.

How often must approved EDP-HDP designations be reviewed?

EDP-HDP Programs shall also include the requirement that approved EDP-HDP designations be reviewed on at least annual basis to confirm that the additional pay is still warranted. (paragraph 2)

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