Which document establishes standards for requesting and approving travel and diplomatic clearances across all military services?

The DoD Foreign Clearance Guide is the document that establishes standards for requesting and approving travel and diplomatic clearances across all military services. This guide provides comprehensive guidance to military members and civilian employees on the requirements and processes for obtaining the necessary clearances to ensure they can travel internationally for official duties without facing legal or procedural issues. It covers various aspects such as documentation, required clearances, and the responsibilities of individuals requesting travel.

The other options do not serve the same function. The Inter-Service Travel Manual primarily addresses travel policies but does not centralize the standards for diplomatic clearances. The Military Travel Authorization Code is a specific code used for administrative purposes related to military travel but does not encompass the broader requirements for travel or diplomatic clearances. Joint Travel Regulations, while they provide policies and entitlements related to travel for military members, do not focus specifically on the standards for diplomatic travel clearances across all services.