35 Miss. Code R. § 2-02-19-101
No on-premise permittee, nor employee or agent thereof, will be permitted on the premises of the permitted place of business pursuant to Miss. Code Ann. Section 67-1-51 while intoxicated or visibly under the influence of an alcoholic beverage, beer or light wine. In addition, no on-premises permittee, nor employee or agent thereof who is on duty, will be permitted on the premises of the permitted place of business pursuant to Miss. Code Ann. Section 67-1-51 while consuming an alcoholic beverage, beer or light wine. On duty for purposes of this regulation shall mean visibly working or the absence of another approved manager who is visibly working and exercising control over the operation of the permitted place of business. Intoxicated for purposes of this regulation shall mean above the legal limit which is established by the Implied Consent Law found in Miss. Code Ann. Section 63-11-1 et seq.
35 Miss. Code. R. § 2-02-19-101