The main purpose of this legislation is to prevent states from charging fees or taxes to fund the Regional Greenhouse Gas Initiative (RGGI) Energy Efficiency Program. The aim is to stop what the bill's sponsors see as an unfair financial burden on consumers and businesses. The key provision of this law is a clear prohibition against any state imposing charges specifically for the purpose of funding the RGGI Energy Efficiency Program. This means that states will not be allowed to collect money from residents or businesses to support this particular initiative.