U.S. tax exemption ID certificate or reseller’s license
Business card or business letterhead
Proof of valid membership to one of the following approved trade organizations.
ASID - American Society of Interior Designers
IIDA - International Interior Design Association
IDS - Interior Design Society
CID - Certified Interior Decorators International
IFDA - International Furnishings and Design Association
AIA - American Institute of Architects
NAHB - National Association of Home Builders