27 Miss. Code. R. 120-8.3
Grievances are to be submitted using the MSPB Grievance Form and management shall provide the 1st Level and Final Agency Response on the grievance form. If necessary, either party may attach relevant supporting documents.
An employee's failure to comply with the required timeframe in Section 8.2(A) or 8.2(C) prohibits the employee from using or exhausting the grievance procedure. In such circumstances, the MEAB does not have jurisdiction to hear an appeal concerning the issue.
An employee's failure to comply with or exhaust the grievance procedure does not relieve an agency's responsibility to timely and appropriately address such issues as necessary. Issues of concern to an employee that are not considered grievable pursuant to Section 8.1 may still require an immediate and appropriate response by the agency. Agencies are especially required to timely and effectively respond to complaints of alleged workplace harassment (Section 5.7) and workplace violence (Section 5.10).
If the agency fails to comply with the required timeframe in Section 8.2 (B) or 8.2 (D) the employee may elect to treat the relief requested as denied at that step and immediately appeal the grievance to the next step.
27 Miss. Code. R. 120-8.3