(B) A regrooved tire may be sold, offered for sale, or introduced for sale or delivered for introduction into commerce only if it conforms to each of the following requirements:

1. (1) The tire being regrooved is a regroovable tire.
2. (2) After regrooving, cord material below the grooves must have a protective covering of tread material at least 3/32 -inch thick.
3. (3) After regrooving, the new grooves generated into the tread material and residual original molded tread groove which is at or below the new regrooved depth must have a minimum of ninety linear inches of tread edges for each linear foot of the circumference.
4. (4) After regrooving, the new groove width generated into the tread material must be a minimum of 3/16 -inch and a maximum of 5/16 -inch.
5. (5) After regrooving, all new grooves cut into the tread must provide unobstructed fluid escape passages.

6. (6) After regrooving, the tire must not contain any of the following defects, as determined by a visual examination of the tire either mounted on the rim or dismounted:

   1. (a) cracking which extends to the fabric;
   2. (b) groove cracks or wear extending to the fabric; or
   3. (c) evidence of ply, tread, or sidewall separation.
7. (7) If the tire is siped by cutting the tread surface without removing rubber, the tire cord material may not be damaged as a result of the siping process, and a sipe may not be deeper than the original or retread groove depth.