Rather than quote the sources and have to give copyright information you can check the websites yourselves. Apparently, CLEO approval is not needed but CLEO notification is - a big change!
ATF new rules on NFA start July 13
https://www.atf.gov/resource-center/docs/general41fquestionsandanswersupdated-6-28-16pdf/download
FINAL Rule 41F – Background Checks for Responsible Persons – Effective July 13 2016 | Bureau of Alcohol, Tobacco, Firearms and Explosives is a Responsible Person
ATF new rules on NFA start July 13
https://www.atf.gov/resource-center/docs/general41fquestionsandanswersupdated-6-28-16pdf/download
FINAL Rule 41F – Background Checks for Responsible Persons – Effective July 13 2016 | Bureau of Alcohol, Tobacco, Firearms and Explosives is a Responsible Person