Beginning in 2011, PDA and PDAIS teamed up to offer PDA members secure, high-quality products and services at competitive prices through the PDA Endorsed Vendor Program. PDAIS and PDA are committed to increasing the value of PDA membership to reduce reliance on dues income. Endorsements generate royalties for PDA, based on member participation. Non-dues income is used to fund vital membership programs and benefits. The cost of endorsed products is never inflated to generate royalties for PDA.