Ohio's Concealed Carry Law makes it Mandatory to notify a police officer that you are carrying a concealed handgun and have a license to do so.
This law will apply to you even if you are merely a passenger in a motor vehicle. The officer may or may not ask you to produce your license and may or may not ask to take possession of your firearm for the duration of the traffic stop. The law specifically prohibits the officer from keeping your firearm if you are released.
Vital: During a traffic stop you should never make any movement that could be considered reaching for or touching your firearm. Besides the common sense reasons, if you are charged with touching your firearm at any time during a traffic stop the charges are a felony.
Sec. 2923.126.
(A) If a licensee is the driver or an occupant of a motor vehicle that is stopped as the result of a traffic stop or a stop for another law enforcement purpose and if the licensee is transporting or has a loaded handgun in the motor vehicle at that time, the licensee shall promptly inform any law enforcement officer who approaches the vehicle while stopped that the licensee has been issued a license or temporary emergency license to carry a concealed handgun and that the licensee currently possesses or has a loaded handgun; the licensee shall comply with lawful orders of a law enforcement officer given while the motor vehicle is stopped, shall remain in the motor vehicle while stopped, and shall keep the licensee's hands in plain sight while any law enforcement officer begins approaching the licensee while stopped and before the officer leaves, unless directed otherwise by a law enforcement officer; and the licensee shall not knowingly remove, attempt to remove, grasp, or hold the loaded handgun or knowingly have contact with the loaded handgun by touching it with the licensee's hands or fingers, in any manner in violation of division (E) of section 2923.16 of the Revised Code, while any law enforcement officer begins approaching the licensee while stopped and before the officer leaves. If a law enforcement officer otherwise approaches a person who has been stopped for a law enforcement purpose, if the person is a licensee, and if the licensee is carrying a concealed handgun at the time the officer approaches, the licensee shall promptly inform the officer that the licensee has been issued a license or temporary emergency license to carry a concealed handgun and that the licensee currently is carrying a concealed handgun.
Sec. 2923.126.
(A) A licensee who has been issued a license under section 2923.125 or 2923.1213 of the Revised Code may carry a concealed handgun anywhere in this state if the licensee also carries a valid license and valid identification when the licensee is in actual possession of a concealed handgun.