Guam

A single secondary source (Wikipedia, citing Guam Code §60109 and Bill 296-32) states Guam allows open carry of handguns and long guns for anyone holding a Firearms ID card, and that Guam converted from 'may-issue' to 'shall-issue' carry licensing. I could not independently reach the Guam Code or Guam Police Department to confirm this primary-source claim this session (fetch attempts failed). Marking conditional rather than a flat 'yes' given the single-source limitation on a fact that could get someone arrested if wrong.

Guam converted to shall-issue concealed carry licensing, but I could not find a specific, citable provision (Guam law, Title 60-ish weapons chapter) addressing places of worship specifically. Marked unclear rather than guessed.

Attempted to fetch a Guam public law directly; the fetch returned no usable content, and no reliable secondary source addressing restaurant/bar carry for Guam firearm identification card holders was found. No usable source found.

Guam Code Title 10, Division 3, Chapter 60 governs firearms generally (registration, possession by new residents, etc.), but I could not confirm Guam's carry-licensing regime or any location-specific (including vessel) restrictions from a primary source within this research.

10 GCA §60109.1(L) lists specific places a concealed-firearms license does NOT authorize carry into: any detention facility, 'any Courthouse' (with an exception letting a judge carry/authorize carry in his or her own courtroom), the Guam Legislature building, posted private property, and Guam Police Department property — a defined, closed list. It does not include a catch-all 'any government building' provision, so an ordinary Guam government office (e.g., a DMV-equivalent or mayor's office) is not on the off-limits list and appears to be allowed for a license holder, while a courthouse is explicitly banned.

Guam became a "shall issue" concealed-carry jurisdiction via Public Law 36-023 (Bill 296-32), but attempts to retrieve the actual bill/code text describing prohibited locations failed (404/redirect errors), and no source found addressed university/college campuses (e.g., University of Guam) specifically. Flagging as unclear rather than guessing.

Guam converted to shall-issue concealed carry licensing (Bill 296-32), but no reliable, specific source was found addressing whether ordinary private businesses are opt-out or require affirmative posted permission for carry.

Two independent secondary sources (CCWCalc, citing 10 GCA 60109.1(l)(1)(E); and a Wikipedia-sourced summary of Title 10, Div. 3, Ch. 60) both describe an opt-out rule: a concealed-carry license does not authorize carry where the property owner/lessee has prohibited it AND posted the prohibition. This is consistent with the national default. However, I could not independently confirm this from the official primary Guam Code text — Justia's chapter page for Guam Title 10 only offers a bulk PDF download that I was unable to render/search in this session — so this rests on secondary-source corroboration only, not a directly-read primary source.

Guam converted from a 'may issue' to a 'shall issue' concealed-carry jurisdiction under Bill 296-32, per Wikipedia's 'Gun laws in Guam,' but neither that source nor the bill text itself (which I was unable to load — the linked PDF returned no readable content) addresses airport-specific carry rules. Genuinely could not find a reliable answer for Guam.

Guam converted from a 'may issue' concealed-carry permit system (approving only ~50/year) to 'shall issue' via Bill 296-32, signed by then-Governor Eddie Calvo — so a CCW-eligible person can now more reliably get a Guam concealed carry license (10 GCA §60109) covering vehicle carry. Alternatively, a 3-year Firearm ID card allows OPEN carry without the CCW license. I could not confirm the exact effective date, nor find a specific vehicle-only carve-out, and could not get a working fetch of an official Guam government/legislature source this session — treat this as a reasonably-corroborated secondary-source answer, not an officially-confirmed one.

Guam moved to 'shall-issue' concealed carry via Bill 296-32 (signed by Gov. Calvo), per available secondary sourcing, but no source found addressed hospital- or medical-office-specific carry restrictions on Guam. Could not confirm either way.

Guam moved from may-issue to shall-issue for concealed/open carry under Bill 296-32 (signed by the Governor c. 2018). I could not load Guam's actual public law text or a GovGuam source describing a prohibited-places or vehicle-carry list; my only source is a general Wikipedia summary. The overall shall-issue framework is reasonably established, but the rest-area-specific question is unconfirmed, so I'm marking this conditional rather than a confirmed yes.

Guam's concealed-carry regime changed substantially in recent years (litigation forced a shift toward shall-issue after Bruen), but no reliable source was found addressing a duty to inform law enforcement specifically. Wikipedia's Guam gun-law page does not cover this point, and Guam's own code text was not reachable. Genuine research gap.

10 GCA § 60108(b) requires Guam residency for the "shall issue" concealed-firearms endorsement route. A widely cited secondary compilation (handgunlaw.us) states Guam also has a discretionary "may issue" concealed-carry route (10 GCA § 60109 area) with no residency requirement, though issuance there is at Guam Police Department discretion rather than guaranteed. I could not independently confirm the "may issue" track's exact text from an official Guam source, so treat this with caution and confirm directly with GPD Records & Identification Section before relying on it.

Read the full official text of 9 Guam Code Ann. Chapter 71, 'The Guam Gun-Free School Zone Act of 2004' (from Guam's official courts law-library PDF). §71.20(a) defines 'school zone' as the area in or on the grounds of a K-12 school (not a 1,000-ft buffer — Guam's own definition is narrower than federal law but stricter in effect since it has no permit exception). §71.30 makes it a THIRD-DEGREE FELONY for ANY person to possess a firearm there. The chapter's only exceptions (§§71.81-71.83) are for peace officers/military, on-duty security guards contracted by the school, and existing shooting ranges — there is no exception anywhere in the chapter for a person with a Guam concealed-carry endorsement on their Firearms ID Card.

Guam's carry-permit regime changed substantially post-Bruen (its may-issue system was successfully challenged), but I could not find a reliable source addressing a private-property signage rule specifically. Marked unclear.

Guam is a shall-issue territory under Guam Code Ann. § 60109 (following Bill 296-32, signed by Gov. Calvo), administered as a single territorial system; no evidence was found of villages having independent lawmaking authority over firearms. However, no explicit preemption clause was located and the NRA-ILA page for Guam did not address local/village authority at all, so this remains only lightly corroborated.

No specific Guam statute addressing firearms at polling places was located; Guam Code Title 10, Division 3, Chapter 60 (firearms) could not be directly reviewed for this specific provision (source page inaccessible), and no secondary source discussing polling-place carry in Guam was found despite Guam having active 2026 elections. Given thin available sourcing for this specific question, 'unclear' rather than a guess.

No magazine capacity restriction found in Guam law.

No extreme risk protection order/red flag statute found for Guam; Guam is absent from all national ERPO trackers checked, and Guam's general gun-law overview (permits, registration, carry, Weapons Control Act) contains no risk-based removal provision.

Per a secondary compilation (citing Guam Code Annotated Title 10 §§60103, 60106, 60109, 60110 and NRA-ILA's Guam page), short-barreled rifles, short-barreled shotguns, machine guns, and suppressors/silencers are ALL prohibited for civilians regardless of federal NFA compliance; destructive devices and AOWs are listed as legal once a federal tax stamp is obtained. Extensive attempts to reach the primary Guam Code Annotated text directly were blocked/unreachable, so this rests on secondary compilation rather than verified primary statute text. No NFA-dealer/FFL directory checked lists Guam as a serviced jurisdiction, consistent with these categories being unavailable in practice as well as by law.

Secondary news reporting (The Guam Daily Post) describes current Guam law as Castle-Doctrine-only: people are exempt from any retreat requirement only in their home, place of work, or vehicle; deadly force elsewhere is not justifiable if it could be avoided by retreating with complete safety. A 2022 legislative proposal (Bill 12-36) sought to extend 'stand your ground' to anywhere a person is lawfully present but could not be confirmed as enacted, so the castle-doctrine-only rule appears to remain current. No duty at home/work/vehicle; duty elsewhere if retreat is safe. Secondary source only — verify current statutory text before relying on this operationally.

10 Guam Code Ann., ch. 60 (Guam Firearms Law) requires a Firearms Identification Card -- issued only after a background check -- to acquire any firearm, and per secondary summaries of the GPD-published firearms law, it is unlawful to transact a private sale, loan, gift, or transfer without seeing the recipient's valid identification card, with the transfer registered through GPD. Caveat: the primary GCA text (a scanned PDF hosted by GPD) could not be parsed during this research, so the exact section number for the private-transfer provision is not independently confirmed here -- this rests on secondary compilations rather than a directly quoted statute.