StacksVerified U.S. regulatory reference

9 CFR §3.27

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
  1. (a)Hamsters shall not be housed in outdoor facilities.
  2. (b)Guinea pigs shall not be housed in outdoor facilities unless such facilities are located in an appropriate climate and prior approval for such outdoor housing is obtained from the Deputy Administrator.