The offense of refusing a chemical test is considered a second offense if it occurs within ____ years of the first offense.

For OVI or refusing a chemical test, an offense is considered a second offense if it occurs within ten years of the first offense. The penalties for a second offense may be more severe than those for a first offense. (Note: The Digest of Ohio Motor Vehicle Laws states incorrectly that the "look-back" period for prior offenses is six years. This used to be the case, but it was increased to ten years, effective April 6, 2017.) [Ohio Impaired Driving Law Chart, Garfield Heights Municipal Court, https://www.ghmc.org/sites/default/files/pdfs/ovichart.pdf]