In all Manufacturing Districts, after December 15, 1961, any use thereafter established or changed to a use listed in Use Group 11A, 16, 17, or 18, and every building or other structure or open area of a zoning lot thereafter developed, constructed, or used for any use listed in Use Group 11A, 16, 17, or 18, shall comply with each and every performance standard governing noise, vibration, smoke and other particulate matter, odorous matter, toxic or noxious matter, radiation hazards, fire and explosive hazards, humidity, heat or glare applicable to the district in which such use, building or other structure or open area is located.

If any existing use or building or other structure is extended, enlarged or reconstructed after December 15, 1961, the applicable district regulations for each and every performance standard shall apply with respect to such extended, enlarged, or reconstructed portion or portions of such use or building or other structure.

In case of any conflict between the Use Groups and the performance standards, the latter shall control. Uses listed in Use Group 18 are permitted in M1 or M2 Districts (as well as M3 Districts) if such uses comply with all of the applicable performance standards for such districts.

In case of any conflict between the performance standards and the rules and regulations adopted by the Department of Environmental Protection, the more restrictive shall apply.