42-51 - Enclosure of Commercial or Manufacturing Activities LAST AMENDED 6/6/2024 M1 M2 M3 In all districts, as indicated, all commercial or manufacturing activities established by #development#, #enlargement#, #extension# or change of #use#, except storage of materials or products, shall be subject to the provisions of this Section with respect to enclosure, except as otherwise specifically provided in the Use Groups permitted in the district, and in Sections 44-11 (General Provisions) and 44-51 (Permitted Accessory Off-street Loading Berths). With respect to the #enlargement# or #extension# of an existing #use#, such provisions shall apply to the #enlarged# or #extended# portion of such #use#. The storage of materials or products shall be subject to the provisions of Section 42-52 (Enclosure of Screening or Storage). #Accessory uses# may be open or enclosed, notwithstanding any limitations on the principal #use#, provided that any open #accessory uses# are customarily found in connection with such principal #use#.