CFR > Title 50 - Wildlife and Fisheries > CHAPTER I—UNITED STATES FISH AND WILDLIFE SERVICE, DEPARTMENT OF THE INTERIOR > SUBCHAPTER C—THE NATIONAL WILDLIFE REFUGE SYSTEM (Parts 25–38) > PART 27—PROHIBITED ACTS > SUBPART G—Disturbing Violations: Light and Sound Equipment (§27.71 to §27.73) > 27.71—Motion or sound pictures.