20 CFR § 404.2108 - Requirements for payment.
(b) The claim for payment must be in a form prescribed by us and contain the following information:
(1) A description of each service provided;
(2) When the service was provided; and
(3) The cost of the service;
(c) The VR services for which payment is being requested must have been provided during the period specified in § 404.2115;
(d) The VR services for which payment is being requested must have been provided under a State plan for VR services approved under title I of the Rehabilitation Act of 1973, as amended, and must be services that are described in § 404.2114;
(e) The individual must meet one of the VR payment provisions specified in § 404.2101;
(f) The State VR agency must maintain, and provide as we may require, adequate documentation of all services and costs for all disability beneficiaries with respect to whom a State VR agency could potentially request payment for services and costs under this subpart; and
(g) The amount to be paid must be reasonable and necessary and be in compliance with the cost guidelines specified in § 404.2117.