US SB3544

Requires individuals to obtain a federal firearm purchasing license before purchasing, receiving, or possessing a firearm, with the Attorney General establishing the licensing system and issuing decisions within 30 days of application

License applicants must complete firearms safety training (written test on laws and hands-on firing test), submit to background investigation and criminal history check, provide fingerprints and proof of identity, and identify the specific firearm intended for purchase

Each license is valid for purchasing a single firearm within 30 days of issuance, expires after 5 years, and may be denied or revoked if the applicant poses a significant danger of bodily injury based on factors including history of violence, domestic violence orders, drug/alcohol abuse, or unsafe firearm handling

Establishes universal background checks by requiring all private firearm transfers between unlicensed persons to go through a licensed dealer, and requires sellers to report firearm sales to the Attorney General within 3 business days

States with substantially similar licensing requirements may be exempted from the federal system, and the Attorney General must enroll all licensees in the FBI's Rap Back service for ongoing criminal record monitoring