DSCA Multi-Service Tactics, Techniques, and Procedures for Defense Support of Civil Authorities (DSCA) [February 2021] [open pdf - 3MB]
From the Preface Purpose and Scope: "This multi-Service tactics, techniques, and procedures (MTTP) publication for Defense Support of Civil Authorities (DSCA) is a single source, reference guide for tactical-level units. It assists military planners, commanders, and individual Department of Defense (DOD) components employing military resources and integrating with National Guard forces while responding to domestic emergencies, in accordance with United States (US) law. [...] This MTTP publication supports planners and warfighters by establishing tactics, techniques, and procedures (TTP) for actions taken by DOD components when directed to support local, territorial, state, tribal, or federal authorities responding to domestic emergencies. Support can be: expertise, equipment, personnel, plans, organizations, communication, training, or other resources." This guidance supersedes guidance of the same name dated September 2015.
ATP 3-28.1; Army Training Publication 3-28.1; MCRP 3-30.6; Marine Corps Reference Publication 3-30.6 ; NTTP 3-57.2; Navy Tactics, Techniques, and Procedures 3-57.2; AFTTP 3-2.67; Air Force Tactics, Techniques, and Procedures 3-2.67; CGTTP 3-57.1; Coast Guard Tactics, Techniques, and Procedures 3-57.1
Army Publishing Directorate: https://armypubs.army.mil/