We accept P.O.'s from public and private schools, government agencies and established businesses (with D&B rating.)
International: P.O.s are accepted from selected Canadian schools and companies, all priced and paid in US dollars. No other International P.O.s are accepted. You can order with a charge card or a "pay by money order" method and then send a M.O. in US Dollars
Please follow this link (found on the "Products" page of our site): Buying with a Purchase Order and fill out the short form. We will approve it promptly, then you can enter any orders you wish by filling in the "Purchase Order Number" field for payment on the order form. Everything is automated from there forward, so your order will ship same day when placed before 1PM Eastern TIme.