{"data":{"id":"us/50-cfr-27.91","jurisdiction":"us","citation":"50 CFR 27.91","heading":"Field trials.","body":"The conducting or operation of field trials for dogs on national wildlife refuges is prohibited except as may be authorized by special permit.","path":["Title 50—Wildlife and Fisheries","CHAPTER I—UNITED STATES FISH AND WILDLIFE SERVICE, DEPARTMENT OF THE INTERIOR","SUBCHAPTER C—THE NATIONAL WILDLIFE REFUGE SYSTEM","PART 27—PROHIBITED ACTS","Subpart I—Other Disturbing Violations"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-50.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:39Z","sha256":"f57fae5b073c277b0654d6676571bba3524fa1bab58d6aaa0acdb624a74b9f90","source_id":"us-cfr","stale":true,"prev":"us/50-cfr-27.86","next":"us/50-cfr-27.92"},"notice":"GroundRules: Original legal text. Not legal advice."}