Parenting time interference occurs when one parent unreasonably blocks, restricts, or frustrates the other parent's court-ordered parenting time. It is one of the most common post-decree complaints and one of the most emotionally charged issues in ongoing family court disputes.

Interference can be active such as keeping the child from the exchange, refusing to allow reasonable calls during the other parent's time, scheduling activities that conflict with court-ordered time or passive consistently being unavailable, not having the child ready, or making exchanges difficult without outright refusing. Not every missed parenting time or phone call rises to the level of intentionally missed parenting time or missed phone call. Parents should be reasonable and cooperative.

Arizona courts take parenting time interference seriously. It is a best-interests factor under A.R.S. § 25-403 and it can support modification of the parenting arrangement when it is intentional, chronic and documented.