A Michigan concealed pistol licensee who wishes to carry a concealed pistol in another state is responsible for complying with the laws of that state.  Michigan's concealed pistol law expressly recognizes permits issued by other states to its residents.  MCL 28.432a . 

Non-residents are subject to the Michigan law while carrying a pistol in Michigan, including those laws restricting where pistols may be carried, the implied consent provision, disclosure to a peace officer when stopped, and carrying while under the influence. 

A non-resident should acquaint himself or herself with the Michigan law before carrying a concealed pistol in Michigan.

Similarly, a Michigan concealed pistol licensee who wishes to carry a concealed pistol in another state is responsible for complying with the laws of that state.  In an effort to identify which states recognize Michigan issued concealed pistol licenses, each state was contacted by the Attorney General. 

States that  recognize Michigan-issued permits are:

Alabama

Alaska

Arizona

Arkansas

Colorado

Delaware

Florida

Georgia

Idaho

Indiana

Kansas

Kentucky

Louisiana

Mississippi

Missouri

Montana

New Hampshire

New Mexico

North Carolina 

North Dakota

Ohio

Oklahoma

Pennsylvania

South Carolina

South Dakota

Tennessee

Texas

Utah

Vermont (does not require carry permits by residents or non residents)

Virginia

Washington

Wyoming

**Again, anyone traveling in one of these states needs to check their laws, which in many instances are available on that state's website.

States that do not recognize non-resident permits are:

California

Connecticut

Hawaii

Illinois

Iowa

Maine

Maryland

Massachusetts

Minnesota 

Nebraska

Nevada

New Jersey

New York

Oregon

Rhode Island

Wisconsin

Federal law expressly provides that persons may carry a firearm in their vehicle while traveling through another state provided that the possession of the weapon is legal in both the states of origin and destination and the weapon is unloaded and carried in the trunk of the vehicle or a locked container other than the glove box.  See 18 U.S.C. 926a