US SB884

Requires ATF to establish an administrative appeals process for individuals denied firearm transfer and registration applications, including providing the NICS transaction number and reimbursing attorney fees for successful appeals

Creates automatic approval for firearm transfer and registration applications if ATF fails to make a determination within 3 business days of filing

Establishes safe harbor protections shielding transferors and transferees from criminal liability when transfers proceed after the 3-day period but are later found to have been improperly approved, provided transferees return firearms within 14 days of notice

Requires the Comptroller General and DOJ Inspector General to report to Congress within 180 days on unresolved NICS background checks from 2010-2024 and recommend actions to reduce delays

Mandates ATF and FBI directors enter a memorandum of understanding within 180 days on administration and processing of NICS inquiries for firearm transfers