(1) The department may approve the service provider for regular certification when the service provider complies with the requirements of this chapter and the residential services contract. The department may:

(a) Grant certification to a service provider for up to two years; and

(b) Extend regular certification for an additional period up to one hundred and eighty days.

(2) If a service provider does not comply with the certification requirements, the department may provisionally certify or decertify a service provider.