A. 
Owners of premises shall be responsible for compliance with the housing standards and shall remain responsible therefor regardless of the fact that this Part 3 may also place certain responsibilities on operators and occupants and regardless of any agreements between owners and operators or occupants as to which party shall assume such responsibility.
B. 
Owners of premises shall be responsible for proper maintenance, condition and operation of service facilities and for furnishing adequate heat and hot-water supply in multiple dwellings.
Lodging house operators shall be responsible for compliance with the housing standards in regard to the following:
A. 
Limiting occupancy to the maximum permitted by the housing standards.
B. 
Maintenance of safe and sanitary conditions in all parts of lodging house premises.
C. 
Maintenance and operation of all required service facilities.
D. 
Maintenance of all plumbing, cooking and refrigeration fixtures and appliances within his control, as well as other building equipment and facilities, in an operative, clean and sanitary condition.
E. 
Sanitary maintenance of walls, floors and ceilings.
F. 
Keeping exits clear and unencumbered.
G. 
Disposal of building garbage and refuse in a clean and sanitary manner.
H. 
Extermination of insects, rodents or other pests on the premises.
I. 
Hanging and removing required screens.
Occupants of dwelling units shall be responsible for compliance with the housing standards in regard to the following:
A. 
Limiting occupancy of that part of the premises which he occupies or controls to the maximum permitted by the housing standards.
B. 
Maintenance of that part of the premises which he occupies or controls in a clean, sanitary and safe condition.
C. 
Maintenance of all plumbing, cooking and refrigeration fixtures and appliances, as well as other building equipment and storage facilities in that part of the premises which he occupies or controls, in a clean and sanitary condition and providing reasonable care in the operation and use thereof.
D. 
Keeping exits from his dwelling unit clear and unencumbered.
E. 
Disposal of garbage and refuse into provided facilities in a clean and sanitary manner.
F. 
Extermination of insects, rodents or other pests within his dwelling unit if his unit is the only one infested in the premises.
G. 
Hanging and removing required screens.
H. 
Keeping his domestic animals and pets in an appropriate manner and under control.