Bylaws and Certification Rules Member K-9 teams may elect to attempt certification as a team, which consists of a handler and his/her dog, in any of the accredited phases of police dog work, endorsed and offered by NAPWDA. The various phases offered for testing and the rules for the specific tests are printed in the NAPWDA Rules for Certification and Bylaws book. The most current book may be downloaded at the top right. The rules are continually reviewed to mandate that NAPWDA minimum standards are in line with current law enforcement standards and specific law requirements. The test is completed on a pass /fail basis.Only an accredited NAPWDA Master Trainer may certify a NAPWDA member K-9 team upon their successful completion of any or all phases attempted. This certification is only valid for a period of one (1) year from the date of the test(s), and as long as the handler is a current member of NAPWDA and the team remains together.