In the property management regulations, which one is not allowed to hang the air conditioner outside the external wall?

Item 2 of Article 6 of the Administrative Measures for Interior Decoration of Residential Buildings issued by the Ministry of Construction (1/kloc-0) shall not change the facade of residential buildings without authorization:

Article 6: Without approval, the decorator shall not engage in the following activities:

(1) Building buildings and structures;

(two) to change the facade of the house and open the doors and windows on the non-load-bearing external wall;

(3) Dismantling heating pipelines and facilities;

(four) the demolition of gas pipelines and facilities

The acts listed in items (1) and (2) of this article shall be approved by the competent department of city planning administration; The third behavior shall be approved by the heating management unit; Article 4 The act shall be approved by the gas business unit.