In Special Mixed Use Districts, the regulations for M1 Districts are modified as follows:

1. Use Group IV
   
   The provisions of M1 Districts set forth in Section 42-14 (Use Group IV – Public Service Facilities and Infrastructure), inclusive, shall apply, except that for uses listed under Use Group IV(B), the provisions of C7 Districts set forth in Section 32-14 (Use Group IV – Public Service Facilities and Infrastructure), inclusive, shall apply.
2. Use Group VI 
   
   The provisions of M1 Districts set forth in Section 42-16 (Use Group VI – Retail and Services), inclusive, shall apply, except that for uses listed in paragraph (c) of Section 42-163 (Use Group VI – uses subject to additional conditions), the provisions of Section 123-22 (Additional Conditions for Certain Uses) shall apply.
3. Use Group IX
   
   The provisions of M1 Districts set forth in Section 42-19 (Use Group IX – Storage), inclusive, shall apply, except that all uses listed under Use Group IX(B) shall not be permitted. In addition, the storage of substances in quantities required to file a Risk Management Plan for Extremely Hazardous Substances shall be subject to the provisions of Section 123-22 (Additional Conditions for Certain Uses).
4. Use Group X
   
   The provisions of C7 Districts set forth in Section 32-20 (Use Group X – Production Uses), inclusive, shall apply, except that:
   1. the size limitations on the ground floor, as set forth in paragraph (b) of Section 32-202 (Use Group X – uses subject to size limitations) shall not apply; and
   2. the additional conditions of Section 32-203 (Use Group X – additional conditions) shall be superseded by the provisions of Section 123-22 (Additional Conditions for Certain Uses).