Veterans who were exposed to burn pits, Agent Orange, and other toxic substances while serving may be eligible for more benefits under a new law called the Promise to Address Comprehensive Toxics (PACT) Act. It’s the most significant expansion of benefits and services for toxic-exposed veterans in more than three decades.Veterans who were exposed to burn pits, Agent Orange, and other toxic substances while serving may be eligible for more benefits under a new law called the Promise to Address Comprehensive Toxics (PACT) Act. It’s the most significant expansion of benefits and services for toxic-exposed veterans in more than three decades.