Via Secrecy News: Nuclear-Radiological Incident Public Affairs (PA) Guidance, DoD Instruction 5230.16, October 6, 2015.

“PURPOSE.  This instruction reissues DoD Directive 5230.16 (Reference (a)) as a DoD  instruction, in accordance with the authority in DoD Directive 5122.05 (Reference (b)), to establish policy and assign responsibilities for the prompt release of information to the public in the event of incidents involving nuclear weapons or nuclear components, radioactive material, nuclear weapon launch or transport vehicles (when a nuclear weapon is aboard), or nuclear reactors under DoD control, or during an improvised nuclear device or radiological dispersal device incident, in accordance with DoD Directive 3150.08 (Reference (c))….”