No money or its equivalent shall be put in the claim box. For a claim to be valid the claimant must have a credit balance in his or her account with the horsemen's bookkeeper of not less than the amount of the claim, plus the applicable post-race testing fee pursuant to N.J.A.C. 13:70-12.36, if elected, and New Jersey sales tax. No claimant shall deplete his or her account after entering a claim for any horse for a period of two hours from the time the said claim was entered. For purposes of this section, a claim shall be deemed entered at the time the stewards, or their appointed deputy, open the claim envelopes pursuant to N.J.A.C. 13:70-12.18.
N.J. Admin. Code § 13:70-12.15