A person shall obtain a license from the Department before operating a group home. The Secretary shall grant a license to an applicant to operate a group home, as described in Regulation .02 of this chapter, if the applicant fulfills the requirements for: Licensure under this chapter; Administrative requirements under COMAR 10.21.17; Psychiatric rehabilitation programs under COMAR 10.21.21; and Residential rehabilitation programs under COMAR 10.21.22.