50 C.F.R. § 10.22
(a) Service law enforcement offices are located in Service regional offices. Regional office addresses are provided at 50 CFR 2.2. Mail should be addressed to “Special Agent in Charge, Office of Law Enforcement, U.S. Fish and Wildlife Service” at the appropriate regional office address. Telephone numbers for Service law enforcement offices follow:
| Region | Law enforcement office telephone number |
|---|---|
| 1 | 503-231-6125 |
| 2 | 505-248-7889 |
| 3 | 612-713-5320 |
| 4 | 404-679-7057 |
| 5 | 413-253-8274 |
| 6 | 303-236-7540 |
| 7 | 907-786-3311 |
| 8 | 916-414-6660 |
[78 FR 35151, June 12, 2013, as amended at 79 FR 43964, July 29, 2014]