When must you notify a law enforcement officer that you are carrying a concealed weapon in Ohio?

You must immediately notify a law enforcement officer if you are carrying a concealed weapon in Ohio. Options A and D are incorrect because you should not wait until the officer specifically asks you about the weapon, and you must notify the officer even if the weapon is not physically on your person. Option B is also incorrect because you should notify the officer as soon as they approach your vehicle, not just within 1 minute of being pulled over.