• Inconsistency between Environmental Protection Agency and Agency for Toxic Substances and Disease Registry regarding acceptable ambient concentrations of sulfur dioxide

Duration: December 6, 2007 to September 30, 2009

General Issues: Clean Air & Water (Quality), Energy/Nuclear, Environmental/Superfund

Spending: about $0 (But it's complicated. Here's why.)

It can be tricky to figure out how much an organization spent on a particular lobbying engagement. The law only requires lobbyists to report the amount they were paid for federal lobbying each quarter rounded to the nearest $10,000—and if it's less than $3,000 in a given quarter (or less than $13,000 for organizations with in-house lobbyists), they don't have to disclose it at all. Plus, some organizations include spending that doesn’t belong in the report—for instance, money spent lobbying state governments or other legal work.

Agencies lobbied since 2007: Agency for Toxic Substances & Disease Registry, Council on Environmental Quality (CEQ), Environmental Protection Agency (EPA), Office of Management & Budget (OMB)

Affiliated organizations: Mirant Corporation