Our 40 and 16 hour courses are approved through DPOR as vocational training related to the State Backflow Prevention Device Worker license ( requirement 13 on the DPOR application downloadable here ) Our registration with DPOR can be found here. During either course we go over what is on the test ( check out the PSI bulletin here ), how to study for it, as well as teach you how to test preventers in the field.
The VA certification we issue is not in itself a backflow license, it is vocational training that is required in order to get the state license. Local jurisdictions may have local licenses with different requirements, but the state license is always acceptable as well. Virginia licenses do not require vocational training in order to renew them, but if holding a license for use in surrounding areas you may need an 8-hour re-certification for that purpose.
40-hour courses are done over four 10-hour days, 16-hour courses are done over two 8-hour days. All class time is in person there is no homework. 40, 16, and 8 hour courses are done concurrently with each other in many instances.