9 CFR § 592.130 - How application for service may be made.
(a) On a fee basis. An application for service may be made with any inspection program personnel at or nearest the place where the service is desired. Such application for service may be made orally (in person or by telephone), in writing or by transmission. If an application for inspection service is made orally, the inspection program personnel with whom such application is made, or the Administrator, may require that the application be confirmed in writing.
(b) Form of application. Each application for inspection of a specified lot of any product shall include such information as may be required by the Administrator in regard to the product and the premises where such product is to be inspected.