The official sources of the PUI Law
Every claim about PUI must be traceable to an official source: the law itself, its publications in Mexico’s Federal Official Gazette (DOF) and the state bodies that operate it. This is the reference page that gathers, attributed and by date, the real sources of the Single Identity Platform. No third-party interpretation: the verifiable origin of each obligation.
Why tracing each claim to its source matters
PUI (the Single Identity Platform) does not stem from a memo or a press release, but from a federal law and from instruments published in the Federal Official Gazette (DOF). For a lawyer, a compliance consultant or a manager making decisions, the difference is critical: what is published in the DOF is binding, enforceable law; what circulates in articles or summaries is interpretation. This page keeps the two apart.
The lodging obligation comes from the General Law on the Forced Disappearance of Persons, Disappearance Committed by Individuals, and the National Search System (LGMDFP). Its purpose is to locate people reported missing. It is neither a tourism rule nor a fiscal one, even though it relies on the state’s own identification mechanisms.
Below are, first, the responsible bodies and, second, the official publications with their DOF appearance dates as of June 2026. Where a piece has not yet been published, it is said plainly, because honesty about what is pending is part of a trustworthy source.
The bodies responsible for PUI
Who sets the rules, who searches and who provides the technical support. Each with a distinct role.
SEGOB
The Ministry of the Interior leads the search policy and coordinates the bodies that operate the platform.
RENAPO
The National Population Registry administers people’s identity; it is the basis of the CURP and of identification.
National Search Commission (CNB)
The SEGOB body that leads the search for missing persons and frames the queries to lodgings.
ATDT
The Digital Transformation and Telecommunications Agency provides the technical support for the interconnection.
The official DOF publications
The instruments that give the obligation life, with their publication date as of June 2026.
LGMDFP reform — July 2025
The reform to the General Law on the Forced Disappearance of Persons that introduces the lodging obligation (Art. 12 Bis) and its penalty (Art. 43 Bis).
Guidelines — 27 November 2025
Published in the DOF, they develop how establishments must comply with identity registration and prepare for interconnection.
Technical Manual v1.0 — 23 January 2026
Defines the technical aspects of the connection: REST/JSON architecture, JWT authentication and AES-256-GCM encryption, SHA3-256 hashing and TLS transport.
SNIP Operations Manual — pending
Not yet published as of June 2026. Once it appears, it opens a 45-business-day window to request access to the system and is a requirement for granting it.
Art. 12 Bis (LGMDFP)
The basis of the obligation: every lodging establishment must register its guests’ identity and make it available to the system.
Art. 43 Bis (LGMDFP)
The basis of the penalty: from 10,000 to 20,000 UMA per infraction, roughly $1,173,100 to $2,346,200 MXN at the 2026 UMA of $117.31.
How these sources relate to one another
The hierarchy is clear. The LGMDFP is the law; from it come Articles 12 Bis and 43 Bis, which create the obligation and the penalty. The Guidelines of 27 November 2025 develop the administrative compliance. The Technical Manual v1.0 of 23 January 2026 brings the connection down to engineering specifications. And the SNIP Operations Manual, still pending, will be the piece that formally enables interconnection and access to the system.
That is why, as of June 2026, the guest identity record is already enforceable —the law and the Guidelines are in force—, while full interconnection with the system awaits publication of the SNIP Operations Manual. Both truths coexist and should not be confused: complying today means recording properly; full connection will arrive once that final manual is published.
A note on method for anyone citing: always refer to the article of the law and to the instrument’s DOF publication date. Avoid reproducing text you have not verified in the source. The strength of a compliance argument lies in its traceability, not in its length.
Official sources
State bodies: Ministry of the Interior (SEGOB); National Population Registry (RENAPO); National Search Commission (CNB); Digital Transformation and Telecommunications Agency (ATDT). The official means of publication is the Federal Official Gazette (DOF).
Publications (by date, as of June 2026): reform to the General Law on the Forced Disappearance of Persons (LGMDFP) published in July 2025, with Articles 12 Bis (obligation) and 43 Bis (penalty); Guidelines published in the DOF on 27 November 2025; Technical Manual v1.0 published in the DOF on 23 January 2026; SNIP Operations Manual, pending publication as of June 2026.