RESNET HERS Raters are trained and certified to inspect and evaluate a home’s energy features, prepare a home energy rating and make recommendations for improvements that will save the homeowner energy and money. HERS Raters undergo rigorous training, testing, assessment, professional development, and adhere to quality assurance standards. RESNET HERS Rater Candidates are required to attend a Rater Training Course which includes using a RESNET accredited HERS Rating Software Program, pass RESNET core competency tests, and accurately complete probationary ratings overseen by a RESNET Candidate Field Assessor through a RESNET Accredited Rating Provider. The RESNET HERS Rater candidate then can be certified by a RESNET Accredited Rating Provider and issued a unique Rating Identification Number (RTIN). Every three years a RESNET HERS Rater must be recertified by the Rating Provider. At a minimum, the rater must complete 18 hours of RESNET-approved professional development training.