Section 73.3999 - Enforcement of 18 U.S.C. 1464 (restrictions on the transmission of obscene and indecent material)(a) No licensee of a radio or television broadcast station shall broadcast any material which is obscene.(b) No licensee of a radio or television broadcast station shall broadcast on any day between 6 a.m. and 10 p.m. any material which is indecent.