50. Notwithstanding any general law or special act, no posting or alteration or demolition of any sign or billboard shall be made in any historic or natural district, on any classified historic site or in any protected area without the authorization of the Minister, who shall obtain the advice of the Commission.
The second paragraph of section 48 and section 49 apply mutatismutandis to the operations referred to in the first paragraph.
1972, c. 19, s. 50; 1978, c. 23, s. 21.