Sec. 260.404. - Requirements.

(a) Regroovable tires. Each tire designed and constructed for regrooving shall be labeled on both sidewalls with the word "Regroovable" molded on or into the tire in raised or recessed letters 0.025 to 0.040 inch. The word "Regroovable" shall be in letters 0.38 to 0.50 inch in height and not less than four inches and not more than six inches in length. The lettering shall be located in the sidewall of the tire between the maximum section width and the bead in an area which will not be obstructed by the rim flange. (b) Regrooved tires. (1) Except as permitted by paragraph (b)(3) of this Section, no person shall sell or offer for sale or lease or offer to lease regrooved tires produced by removing rubber from the surface of a worn tire tread to generate a new tread pattern. (2) Unless the tire meets the requirements of subparagraphs (b)(3)(A) through (b)(3)(F) and subsection 2(c), no person shall regroove his own tires for uses on his own motor vehicles. (3) A regrooved tire may be sold or offered for sale or leased or offered for lease only if it conforms to each of the following requirements: (A) The tire being regrooved shall be a regroovable tire which meets the requirements set forth in subsection (a) of this Section; (B) After regrooving, cord material below the grooves shall have a protective covering of tread material at least 3/32 -inch thick; (C) After regrooving, the new grooves generated into the tread material and any residual original molded tread groove which is at or below the new regrooved depth shall have a minimum of 90 linear inches of tread edges per linear foot of the circumference; (D) After regrooving, the new groove width generated into the tread material shall be a minimum of 3/16 -inch and a maximum of 5/16 -inch; (E) After regrooving, all new grooves cut into the tread shall provide unobstructed fluid escape passages; (F) After regrooving, the tire shall not contain any of the following defects, as determined by a visual examination of the tire either mounted on the rim, or dismounted, whichever is applicable: (i) Cracking which extends to the fabric; (ii) Groove cracks or wear extending to the fabric; (iii) Evidence of ply, tread, or sidewall separation; (iv) If the tire is siped by cutting the tread surface without removing rubber, the tire cord material shall not be damaged as a result of the siping process, and no sipe shall be deeper than the original or retread groove depth. (c) Siped regroovable tires. No person shall sell, or offer for sale or lease or offer to lease, a regroovable tire that has been siped by cutting the tread surface without removing rubber if the tire cord material is damaged as a result of the siping process, or if the tire is siped deeper than the original or retread groove depth. (Ord. 94-501-374, § 4)