Ohio Revised Code Title XV. Conservation of Natural Resources § 1533.04

(A) A person who holds a valid hunting license issued under this chapter and who hunts game birds or wild quadrupeds may use a suppressor attached to a gun that is authorized to be used for hunting by section 1533.16 of the Revised Code while hunting, provided that the person is authorized to possess the suppressor under state and federal laws and has registered the suppressor in accordance with the “National Firearms Act,” 68A Stat. 725 (1934), 26 U.S.C. 5841, et seq., as amended.

(B) As used in this section, “suppressor” means any device used for diminishing the sound of any shot, bullet, or projectile that is discharged from a gun that is authorized to be used for hunting by section 1533.16 of the Revised Code.