Child Support Enforcement Act: Federal law establishing national standards for child support enforcement and collection, including mechanisms for locating parents and enforcing support orders across state lines

Full Faith and Credit for Child Support Orders Act: Federal law requiring states to enforce child support orders issued by other states, preventing parents from avoiding obligations by moving across state lines

Uniform Interstate Family Support Act (UIFSA): Provides uniform rules for enforcement of support orders across state lines and determines which state has continuing jurisdiction over support orders

Bradley Amendment: Federal law prohibiting retroactive reduction of child support arrearages, making past-due child support obligations unchangeable and not dischargeable in bankruptcy

State Support Guidelines: State-specific regulations and formulas used to calculate appropriate support amounts based on factors such as income, custody arrangements, and children's needs

State Enforcement Mechanisms: State-specific tools for collecting support, including wage garnishment, tax refund intercepts, property liens, and license suspension

State Statute of Limitations: Time limits set by each state for collecting past-due support payments and enforcing support orders

State Interest Rules: State-specific regulations regarding interest charges on unpaid support obligations and how interest is calculated and collected

Jurisdiction Requirements: Legal rules determining which court has authority to hear support cases and issue or modify support orders

Demand Letter Requirements: Legal requirements for proper demand letters including clear statement of amounts owed, payment history, response timeline, and potential legal actions

Fair Debt Collection Practices Act: Federal law governing debt collection practices, including requirements for communications and prohibited practices when collecting support payments through third-party collectors