Maryland Code, Agriculture § 6-218

The Secretary may refuse to register or cancel the registration of any brand of commercial fertilizer or soil conditioner upon satisfactory evidence that the registrant has used fraudulent or deceptive practices in evasions or attempted evasions of the provisions of this subtitle or any rules and regulations adopted under it. However, no registration may be refused or revoked until the registrant has been given the opportunity to appear for a hearing by the Secretary.