A collection of responses from the SNT-TC-1A Interpretation Panel to inquiries about Recommended Practice SNT-TC-1A submitted from 1976 though 2016. The responses clarify the intent of ASNT’s Technical and Education Council and the recommendations of SNT-TC-1A. This book is updated annually to include the previous year’s inquiries and responses. 44 pages, ASNT 2017. ISBN: 978-1-57117-386-7 (print) ISBN: 978-1-57117-387-4 (ebook)