According to a report published on the Tenth Amendment Center’s Web site, “Introduced in the Ohio House on Oct. 16, 2009, the ‘Firearms Freedom Act’ (HB-315) seeks ‘To enact section 2923.26 of the Revised Code to provide that ammunition, firearms, and firearm accessories that are manufactured and remain in Ohio are not subject to federal laws and regulations derived under Congress’ authority to regulate interstate commerce and to require the words “Made in Ohio” be stamped on a central metallic part of any firearm manufactured and sold in Ohio.'”
The report went on to say, “While the HB315’s title focuses on federal gun regulations, it has far more to do with the 10th Amendment’s limit on the power of the federal government. It specifically states: ”The regulation of intrastate commerce is vested in the states under the Ninth and Tenth Amendments to the United States Constitution, particularly if not expressly preempted by federal law. The congress of the United States has not expressly preempted state regulation of intrastate commerce pertaining to the manufacture on an intrastate basis of firearms, firearm accessories, and ammunition.'”
Some supporters of the legislation say that a successful application of such a state-law would set a strong precedent and open the door for states to take their own positions on a wide range of activities that they see as not being authorized to the Federal Government by the Constitution.
Status of state bills: http://www.tenthamendmentcenter.com/nullification/firearms-freedom-act/