The Attorney General's Web Site has the following language:
AND:
The statute has the following language:
Then the State of Idaho website has the following quotation:
The way it was explained to me by the CCW attorney was that Idaho residents have Constitutional Carry, but if you are from another State you must have a CCW that Idaho recognizes. The language from the AG website seems to indicate that ANYONE can CC here, but I think that is just a poorly framed statement, and looks to be taken from the perspective of an Idaho citizen asking the question. The second quote I pulled from the AG website states that you must carry your recognized CCW from another state while carrying concealed. If it was constitutional carry for any US Citizen, this would have been answered differently.
The actual statute and the State of Idaho web sites indicate Constitutional Carry is for residents only. However, I was Law Enforcement, not an attorney, so I can just pass along what I have been told.
FWIW - Additionally, the Concealed Carry Law smartphone application states that Idaho is constitutional carry state for residents only.
I went and read the actual law They seldom remove sections of the codes. What they usually do is add exceptions. Idaho legislators did that with the ADDITION of Item ii of f in section 4 basically cancelling out, BUT not removing ITEM 3.
Item ii of f in section 4 following section 3 of code 18-3302 makes it clear a citizen of the US does NOT need a permit to carry concealed in Idaho. I am reading from the actual state statue.
(3) No person shall carry concealed weapons on or about his person without a license to carry concealed weapons, except:
(a) In the person's place of abode or fixed place of business;
(b) On property in which the person has any ownership or leasehold interest;
(c) On private property where the person has permission to carry concealed weapons from any person with an ownership or leasehold interest;
(d) Outside the limits of or confines of any city, if the person is eighteen (18) years of age or older and is not otherwise disqualified from being issued a license under subsection (11) of this section.
NOTE 4 references 3 and states where 3 does NOT APPLY
(4) Subsection (3) of this section shall not apply to restrict or prohibit the carrying or possession of:
(a) Any deadly weapon located in plain view;
(b) Any lawfully possessed shotgun or rifle;
(c) Any deadly weapon concealed in a motor vehicle;
(d) A firearm that is not loaded and is secured in a case;
(e) A firearm that is disassembled or permanently altered such that it is not readily operable; and
HERE IT COMES
(f) Any deadly weapon concealed by a person who is:
(i) Over eighteen (18) years of age;
HERE IT IS
(ii) A citizen of the United States or a current member of the armed forces of the United States; and
(iii) Is not disqualified from being issued a license under paragraphs (b) through

of subsection (11) of this section.
Section 11 states (11) A license to carry concealed weapons shall not be issued to any person who:
(a) Is under twenty-one (21) years of age, except as otherwise provided in this section;
(b) Is formally charged with a crime punishable by imprisonment for a term exceeding one (1) year;
(c) Has been adjudicated guilty in any court of a crime punishable by imprisonment for a term exceeding one (1) year;
(d) Is a fugitive from justice;
(e) Is an unlawful user of marijuana or any depressant, stimulant or narcotic drug, or any controlled substance as defined in 21 U.S.C. 802;
(f) Is currently suffering from or has been adjudicated as having suffered from any of the following conditions, based on substantial evidence:
(i) Lacking mental capacity as defined in section 18-210, Idaho Code;
(ii) Mentally ill as defined in section 66-317, Idaho Code;
(iii) Gravely disabled as defined in section 66-317, Idaho Code; or
(iv) An incapacitated person as defined in section 15-5-101, Idaho Code;
(g) Has been discharged from the armed forces under dishonorable conditions;
(h) Has received a withheld judgment or suspended sentence for a crime punishable by imprisonment for a term exceeding one (1) year, unless the person has successfully completed probation;
(i) Has received a period of probation after having been adjudicated guilty of, or received a withheld judgment for, a misdemeanor offense that has as an element the intentional use, attempted use or threatened use of physical force against the person or property of another, unless the person has successfully completed probation;
(j) Is an alien illegally in the United States;
(k) Is a person who having been a citizen of the United States has renounced his or her citizenship;
(l) Is free on bond or personal recognizance pending trial, appeal or sentencing for a crime that would disqualify him from obtaining a concealed weapons license;
(m) Is subject to a protection order issued under chapter 63, title 39, Idaho Code, that restrains the person from harassing, stalking or threatening an intimate partner of the person or child of the intimate partner or person, or engaging in other conduct that would place an intimate partner in reasonable fear of bodily injury to the partner or child; or

Is for any other reason ineligible to own, possess or receive a firearm under the provisions of Idaho or federal law.
I assume Muggins is not disqualified under section 11
Montana is similar as there is still a law on the books prohibiting concealed carry with out a permit. They simply added an really big exception to that which includes everyone who can legally own a gun.