H.R.3491: To amend the Atomic Energy Act of 1954 to improve and strengthen the safety inspection process of nuclear facilities.

Amends the Atomic Energy Act of 1954 to direct the Nuclear Regulatory Commission (NRC) to: (1) develop an independent safety assessment procedure for nuclear facilities; and (2) create a team to inspect the design, construction, maintenance, and operational safety performance of a facility.

Declares that a final NRC decision on whether to extend an operating license, approve an extended power uprate, or continue to operate a facility shall not be made until: (1) the NRC has completed the independent safety assessment of the facility; and (2) the licensee has fully accepted and implemented each NRC-approved finding and recommendation of the assessment report