A Letter of Authorization authorizes payment for medical services received over 12 months before the current month. Instructions: This form is required for authorization of services.To do this, Santa Clara Valley Medical Center (SCVMC) requires a completed and signed form before we can release the records to anyone, including the patient. Requestor must complete this section. Use this form to appoint an individual or organization as your Medi-Cal authorized representative. All services, forms processing, and disability claims require completion of the Authorization for Disclosure (Spanish version) form. Download an advanced health care directive form. State your wishes concerning health care decisions in the event you cannot speak for yourself. The history details in AB1424 form should support your conclusions in the Cover Letter. MRAP Application, PDF (254K): Medical Rate Assistance Program form.