To amend the Atomic Energy Act of 1954 to prohibit certain waivers and exemptions from emergency preparedness and response and security regulations.

Safe and Secure Decommissioning Act of 2017 This bill amends the Atomic Energy Act of 1954 to prohibit the Nuclear Regulatory Commission from approving the request of a licensee for a waiver of, or exemption from, a covered regulation applicable to a civilian nuclear power reactor that has permanently ceased to operate. A covered regulation includes: (1) an emergency preparedness or response regulation or requirement, or (2) a security regulation or requirement applicable to spent nuclear fuel. This prohibition shall not apply to a civilian nuclear power reactor at which all spent nuclear fuel has been transferred to spent nuclear fuel dry casks.