Nuclear Science User Facilities 106 PIEs are primarily performed at the Hot Fuel Examination Facility (HFEF) of Idaho National Laboratory (INL).All non-destructive PIEs were completed, and destructive baseline PIEs are currently ongoing. Baseline non-destructive PIEs performed included neutron radiography, gamma spectroscopy, and dimensional inspection. Baseline destructive PIEs comprise fission-gas release, burnup analysis, and optical microscopy, including image analysis and micro- hardness testing. PIE highlight and discussion Non-destructive PIE Spiral profilometry scans were collected utilizing the in-cell element contact profilometer (ECP).The diameter was measured at intervals of 2.54 mm, starting at the top of each fuel pin. Results are reported for all four pins in Figure 1.The nominal as-fabricated diameter is also shown in red.The results of all four pins are similar, with a uniform and limited strain along the full pin length.A more pronounced swelling of the cladding is noticeable in the part corresponding to the active column length, which is expected. Gamma spectroscopy was performed with the precision gamma scanner (PGS) at HFEF. Only long-lived fission products Eu-154 and Cs-137 were detectable. Eu-154 and Cs-137 axial profiles are presented in Figure 2 and 3, respectively.The Eu-154 profiles follow the fission density of the fuel, indicating that the pins achieved similar burnup values, with pin L-08 having slightly higher burnup value. The depressed signals above and below the active fuel stack (see red arrows in Figs. 2 and 3) correspond to the blanket portions of the stack. According to fuel-performance-code calculations, burnup values at peak Figure 1. Cladding profilometry results of the four pins.