Quarterly 340B Program site registration is open from April 1 to 15. Health centers will be able to register a site that has been verified as implemented and with a site status reflected as “active” in EHB Form 5B through Friday, May 28. After that date, the system will close to prepare for the July 1 start. Email the 340B Prime Vendor Program or call 888-340-2787 (Monday-Friday, 9:00 am – 6:00 pm) to register a new site or ask questions. You will need to provide the following information when calling: health center name, site/clinic name, site IDs for all sites, HRSA/BPHC grant number, contact name and email address and authorizing official name and email address.