Yes, a custody order can be enforced if one parent does not abide by the terms outlined in the order. If a parent is not complying with the custody order, the aggrieved parent can file a motion for enforcement with the court. This motion outlines the specific violations and requests appropriate remedies. The court has the authority to take various actions to enforce the custody order. These actions may include modifying the custody order to address the violations, holding the non-compliant parent in contempt of court, imposing fines or penalties, granting make-up visitation time to the aggrieved parent, or even considering a change in custody if the violations are severe and continuous. It is important to consult with an attorney to understand the specific enforcement options available and the steps involved in the process.