Unfortunately, OPM has not yet provided guidelines for EFEL, as was anticipated. Thus, as a result, the USPS at the headquarters level has put out the attached document, dated March 30, 2021, as follow up to the two prior Tulino documents dated March 12, 2021, and March 18, 2021 (previously disseminated). Please note that the attached is a unilateral USPS document.
Once OPM issues its guidelines APWU will issue its interpretation of said guidelines.
You can see the new letter put out by the USPS here.