What is an exemption certificate?
An exemption certificate is an X.509 certificate. It serves to exempt computers from Network Access Protection (NAP) health checks. Exemption certificates can be used in the same way as health certificates for IPsec authentication. Unlike a health certificate that works according to validity timing, the NAP exemption certificate is a long-lived certificate. Server computers can use exemption certificates to participate in IPsec-protected communications on NAP-enabled networks.
It is a wallet-sized card, bearing the holder’s eight-digit exemption number. Certificates issued to nonprofit religious, educational and charitable organizations, cemeteries, credit unions, and volunteer fire companies or rescue squads are printed on white paper with purple ink and contain an expiration date of September 30, 2012. Certificates issued to qualifying veterans organizations are printed on white paper with blue ink and contain an expiration date of June 30, 2009. Certificates issued to governmental entities are printed on white paper with red ink and contain no expiration date. An exemption certificate should not be confused with a resale certificate. Resale certificates are used primarily by manufacturers, wholesalers and retailers to purchase, free of tax, the items they sell. Who may use an exemption certificate? The Comptroller’s Office issues exemption certificates to nonprofit charitable, educational and religious organizations, volunteer fire companies and rescue sq