(1) As applicable, patient records must include: 

(a) dates, locations, and methods for all patient contacts; 

(b) description of services;

(c) a record of and receipt for any hearing aids returned; and

(d) a copy of all final bills of sale.

(2) Dispensers shall maintain patient records for a minimum of seven years from the last recorded date of service. Deceased patient records may be discarded one year after the date of death.