UKJAS gives certification to handle assessment bodies (FEB) in view of prerequisites in the UKJAS Authorization Rules for Field Assessment of Unlisted Electrical Hardware , ISO/IEC 17020 and NFPA Guidelines. UKJAS certify FEBs are able to assess unlisted electrical gear in the field. The UKJAS Authorization helps the Authority Having Locale (AHJ) to assess and support unlisted electrical hardware in the field.