Grounds for Cancellation shall be:
Except for non-payment of premium, or evidence of incendiarism, or a cause, which would have been grounds for non-acceptance of the risk at the time of inspection, or a misrepresentation of fact, thirty (30) days notice of cancellation, together with a statement of the reasons therefore, shall be sent to the insured. A statement explaining that the insured has a right of appeal shall accompany all notices.
D.C. Mun. Regs. tit. 26, r. 26-A1316