B-52H bombers are no longer authorized to carry nuclear gravity bombs

According the official document (Air Force Instruction 91-111): B-52 bombers are no longer authorized to carry nuclear gravity bombs. New Air Force instruction describes “removal of B61-7 and B83-1 from B-52H approved weapons configuration.” 

A U.S. Air Force manual has confirmed previous reports that the service's iconic B-52H bombers are no longer authorized to carry nuclear gravity bombs. The only nuclear weapon these aircraft are presently certified to carry is the AGM-86B Air Launched Cruise Missile, which is set to eventually get replaced by a new stealthy missile under development now under the Long Range Stand Off program, or LSRO.

Hans Kristensen, who is Director of the Nuclear Information Project at the Federation of American Scientists was first to spot the updated information about the B-52H's nuclear loadouts in the latest version of Air Force Instruction 91-111, which is dated September 2019. This manual, titled "Safety Rules for U.S. Strategic Bomber Aircraft," is unclassified and also includes basic information on approved weapons for the B-2A Spirit stealth bomber.