What it is
STANAG 2230 is a NATO Standardization Agreement, currently Edition 4, dated 5 December 2018. It is not a technical specification. It is the agreement by which NATO nations commit to ratify and implement AJP-4.6, Edition C, the Allied Joint Doctrine for the Joint Logistic Support Group. The doctrine itself, not this cover, is where the substance lives: the aim stated in the STANAG is "to provide a doctrinal framework for the conduct of multinational joint theatre-level logistics, in particular through the joint logistic support group and the function of its headquarters." Read on its own, STANAG 2230 requires almost nothing of a supplier directly. Its obligations run to nations, and it reaches an organisation supporting a logistics operation only once a nation has implemented it and a specific tasking or contract invokes the doctrine.
Who it binds, and how
STANAG 2230 is explicit that it binds nations rather than organisations. Its letter of promulgation describes the enclosed agreement as one "which has been ratified by member nations, as reflected in the NATO Standardization Document Database (NSDD), is promulgated herewith." Under "Agreement," participating nations agree to implement AJP-4.6(C) "in accordance with their ratification responses" - the commitment is a national one, made by ratification, not a duty a supplier signs up to by reading this document. Ratification and implementation are separate steps, and the document invites nations that have not yet reported their position to "advise the NSO of their intention regarding its implementation." So "is STANAG 2230 mandatory" has no single answer: it depends on whether a given nation has ratified and implemented it, and, for an organisation supporting a logistics operation, on whether a specific tasking or contract then invokes the doctrine that implementation puts in place.
What the agreement actually commits nations to
The stated aim is to respond to an interoperability requirement: "to provide a doctrinal framework for the conduct of multinational joint theatre-level logistics, in particular through the joint logistic support group and the function of its headquarters." The STANAG states it "is effective upon receipt and ready to be used by the implementing nations and NATO bodies" - a NATO-wide mechanism, not a national or civil one. None of this is written as a duty on a supplier; it is a duty on the nation, and on the NATO and national bodies that stand up and run a joint logistic support group.
A cover agreement, not the doctrine itself
A reader who only has STANAG 2230 in hand does not yet have the doctrine it points to. The actual doctrinal content - how a joint logistic support group and its headquarters are organised and run - sits in AJP-4.6, Edition C. Other related documents named alongside it are MC 319 (NATO's principles and policies for logistics), STANAG 2490 (which covers AJP-3, the allied joint doctrine for the conduct of operations), STANAG 2182 (which covers AJP-4, allied joint logistic doctrine), and the Bi-SC Joint Operational Guidelines 13/01 on logistics, dated January 2013.
Reporting and review
National decisions on ratification and implementation are provided to the NSO and recorded in the NSDD. Nations are invited to report their effective implementation, and partner nations their adoption, in accordance with AAP-03. The STANAG itself "is to be reviewed at least once every five years," with the result recorded in the NSDD - a check on whether the agreement is still current, not an audit of any organisation. Nations and NATO bodies may propose changes at any time through a standardization proposal to the tasking authority. The agreement is supervised by the Logistics Committee (LC, LCEG(S), LCS WG), with NATO Allied Command Transformation's Resources and Logistics function named as custodian.
What it does not cover
STANAG 2230 names no logistics procedure, staffing table or equipment requirement of its own - that detail sits entirely in AJP-4.6. It also names no assessment or certification scheme: the only stated check is that the STANAG itself is reviewed periodically, not that an organisation or a joint logistic support group is certified.