4 Pa. Code § 2.36 – Eligibility requirements.

(a) A qualified small business concern, to be eligible under this subchapter, shall include the following on the face of every invoice presented to the Commonwealth:‘‘(name of vendor) is a qualified small business concern as defined in 4 Pa. Code § 2.32.’’
(b) Invoices, and any inquiries related thereto, of a qualified small business concern shall be directed to the payment office or finance center designated on the contract or purchasing document. If no payment office or finance center is designated, a proper invoice shall be submitted to the organization within the Commonwealth agency that accepts delivery of the property or service.