Effective September 15, 2015 EPA will no longer offer the option of submitting lead program applications by mail. This applies to all individual, firm and trainer applications required by EPA’s lead renovation and abatement programs. After that date all applications, payments, updates and certificate replacement requests will be done online using the Agency’s Central Data Exchange (CDX) system. This change is part of an Agency effort to decrease cost and increase efficiency. Although this option was only recently added for individuals and trainers, it has been available to firms for some time. At present, nearly 90% of firm applications are submitted online. Acceptable methods for payments online include credit card, debit card, or electronic check.