According to updates on http://cars.gov, operated by NHTSA, the Cash for Clunkers program will not be ready to implement until Late July. The previous idea circulating on the Internet was that the program would start on July 1st.
This give the NHTSA some breathing room to get dealers registered for the program and systems in place to validate the sales information provided by dealers. Once the program is setup, car dealers would be paid in 10 days according to the website.
Consumer interest in the program is growing each day and the Cash for Clunkers Facts website should have over 1,000 dealers registered by the end of the week. Dealers interested in being listed in the National Directory can follow this link: http://www.cashforclunkersfacts.com/advertise/dealer-cfc-badge