Spurs with gaffs worn short shall not be used. The gaffs on spurs shall be kept sharp, and spurs shall fit properly. Spurs shall not be worn on work for which they are not required, nor while men are traveling to or from work.
34 Pa. Code § 39.424
This section cited in 34 Pa. Code § 39.421 (relating to general provisions); 34 Pa. Code § 39.441 (relating to general provisions); and 34 Pa. Code § 39.461 (relating to general requirements).