R.W.
You will want to open a case with your local county child support enforcement unit. File an application with them and pay the $20 application fee. They will attain a support order (if you don't have one already) and will enforce the order they attainor will enforce your existing order. They will have to serve the other party with process, so in order to get the support order, they have to locate the other party, however they are very good at this if you don't know where he is. They can also review and adjust child support when the financial situation changes if you so request. They have numerous enforcement techniques, including wage assignments, suspension of driver's license, credit reporting, etc. which make it much more likely that you will receive the child support. They also get new hire reports and Department of Labor reports and will send a new income assignment when the obligor changes jobs. This is for the child, not you. Sometimes, in response to request for child support, the other party demands parenting time. This could be very good for the child as it is best for the child to have two involved parents.