Okla. Stat. tit. 41, § 41-118: Duties of landlord and tenant

A. A landlord shall at all times during the tenancy:

1. Except in the case of a single-family residence, keep all

common areas of his building, grounds, facilities and appurtenances

in a clean, safe and sanitary condition;

2. Make all repairs and do whatever is necessary to put and

keep the tenant's dwelling unit and premises in a fit and habitable

condition;

3. Maintain in good and safe working order and condition all

electrical, plumbing, sanitary, heating, ventilating, air-

conditioning and other facilities and appliances, including

elevators, supplied or required to be supplied by him;

4. Except in the case of one- or two-family residences or where

provided by a governmental entity, provide and maintain appropriate

receptacles and conveniences for the removal of ashes, garbage,

rubbish and other waste incidental to the occupancy of the dwelling

unit and arrange for the frequent removal of such wastes; and

5. Except in the case of a single-family residence or where the

service is supplied by direct and independently metered utility

connections to the dwelling unit, supply running water and

reasonable amounts of hot water at all times and reasonable heat.

B. The landlord and tenant of a dwelling unit may agree by a

conspicuous writing independent of the rental agreement that the

tenant is to perform specified repairs, maintenance tasks,

alterations or remodeling.

C. Prior to the commencement of a rental agreement, if a

landlord knows or has reason to know that the dwelling unit or any

part of the premises was used in the manufacture of methamphetamine,

the landlord shall disclose this information to a prospective

tenant. Provided however, if the landlord has had the level of

contamination assessed within the dwelling unit or pertinent part of

the premises, and it has been determined that the level of

contamination does not exceed one-tenth of one microgram (0.1 mcg)

per one hundred square centimeters (100 cm2) of surface materials

within the dwelling unit or pertinent part of the premises, no

disclosure shall be required.