Health Hazard Assessment (HHA)

Request HHA Services

Last Updated: March 31, 2025

​​​​​Requests for Health Hazard Assessments (HHA) are required to be submitted to the DHA Operations Center RFI Mailbox (see below) using a DHA Form 435 (right click, save link​ as). Incomplete forms will cause a delay in processing your request.

Note: If you are receiving the “Please Wait…”  message when opening the DHA Form 435 in a browser, download and save the form and open in Adobe Acrobat or compatible application.  

Please follow the instructions below​:​

Instructions for DHA Form 435

​B​locks
​Instructions  


1-3​

Main point of contact for Health Hazard Assessment​ request.


4-8

Leave blank.

9

Choose from drop down.

10 a-c

Same as blocks 1-3 or an alternate point of contact.


11

Request a Health Hazard Assessment for (System Name (System Acronym))


12*

Task to: AD-HCA-PH DCPH-A OHS
Request that the Health Hazard Assessment Division (OHS), Defense Centers for Public Health-Aberdeen coordinate with customer to discuss feasibility and timeline to conduct  a Health Hazard Assessment for (System Name) as required by Army Regulation (AR) 40-10, AR 70-1, AR 770-3, and AR 602-2.
PEO:
Program/Product/Project Manager (PM office):
ACAT Level:
Acquisition Event: (Must be a standard acquisition event as prescribed in AR 770-3.  See list below).​​​

​​

13

Date submitted.

14

21 calendar days from submission for all requests.  Note: This date is to complete coordination.​​​

​​

15

Routine RFI/RFA - all acquisition events except Urgent Materiel Release (UMR).
Urgent RFI/RFA - UMR only.


16

Complete this block only if Urgent RFI/RFA is checked in block 15.  Note:  Ensure the materiel system is identified as a UMR in the HHA request memorandum.


17

Leave blank.


*Critical.


Standard​​ Acquisition Events

  • Milestone B​
  • Milestone C
  • Full Rate Production (FRP)
  • Type Classification Limited Procurement (TC LP)
  • Type Classification Standard (TC STD)
  • Full Materiel Release (FMR)
  • Condition Materiel ​​Release (CMR)
  • Training Materiel Release (TMR)
  • Urgent Materiel Release (UMR)
  • Mid-Tier Ac​qu​is​ition (MTA)​
  • Engineering Change Proposal (ECP)


The completed DHA Form 435 and signed HHA request memorandum on organizational letterhead are to be submitted to the following mailboxes:

To: dha.ncr.operations-j-3.mbx.rfi-mgr@health.mil

Cc: dha.apg.Pub-Health-A.list.hha@health.mil


​​​The HHA request memorandum should include:​

  • Primary and technical points of contact, address, Program Executive Office, phone numbers, and e-mail.
  • System nomenclature and description to include major components.
  • Purpose of the system.
  • Number of systems and number of users/operators per system.
  • System life-cycle phase and Acquisition Category level.
  • Purpose of HHA report and date required.
  • System/prototype availability (where/when).
  • Statement on availability of funds to support HHA effort (ACAT I - labor & travel; ACAT II, III, IV - travel).
  • Names, phone numbers, e-mail addresses of system safety, human systems integration, test and evaluation points of contact.


Direct a​ll questions about HHA requests to






 

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