JP 3-28, page 65

Supporting Civilian Law Enforcement Agencies III-9 prior to deploying from home station for a DSCA mission. There may also be a difference between the standing rules for the use of force (SRUF) and the RUF for each state’s NG forces. Depending on the state, the state RUF may be more or less restrictive than the SRUF. NG forces serving in a Title 32, USC, duty status must follow state laws. (1) Commanders should evaluate and plan for the use of nonlethal weapons in domestic operations. Additionally, commanders should plan for and conduct rehearsals of RUF to prepare their personnel for operations that may employ nonlethal weapons. (2) Each Service has developed nonlethal weapons to address force application and FP requirements. Given the nature of the DSCA operation, nonlethal weapons—and their ability to provide precise and relatively reversible effects—are particularly relevant. Nonlethal weapons span a range of technologies (e.g., acoustic and optical devices to provide enhanced warnings, riot control agents and blunt impact munitions to deny access or move individuals, mechanical systems to deny access to vehicles, or electromagnetic systems to degrade/stop/disable personnel or materiel). (3) Military personnel must be properly trained in the use of nonlethal weapons. The command staff judge advocate should also review all pertinent orders and instructions for their use. Use of nonlethal weapons, to include use of riot control agents, like the use of all weapons, will require approval from higher headquarters and/or authorization from appropriate authorities (state or federal). Care should be taken to ensure that orders and instructions for the use of nonlethal weapons are not more restrictive than those for lethal weapons or their utility in mitigating civilian casualties and collateral damage will be compromised.