Enviro groups claim support for the rule, which will help address climate change. Industry supporters say online system shut out people without reliable internet.
The lawsuit is challenging a plan to allow spikes of sulfur dioxide at two power plants. Even at low levels, SO2 can affect asthmatics in as little as two minutes.
The bill calls for stiffer penalties for trespassing and tampering of infrastructure like pipelines. Enviro groups say the bill could stifle legitimate protests.