# COMAR Title 21 — State Procurement Regulations

## Subtitle 07 — Contract Terms and Conditions

### Chapter 03 — Mandatory Terms and Conditions for Purchase Orders Over $50,000

#### Regulation .20 Contractor's Invoices.

*COMAR 21.07.03.20*

“Contractor agrees to include on the face of all invoices billed to the State, its Taxpayer Identification Number, which is the Social Security Number for individuals and sole proprietors and the Federal Employer Identification Number for all other types of organizations.”