The Associated Press reports that Dow Chemical Co. paid GolinHarris $200,000 in the first half of 2007 to lobby the federal government, according to a federal disclosure form. The firm lobbied Congress on energy and climate change bills, and homeland security legislation dealing with railway car safety, according to the form posted online Aug. 8 by the Senate''s public records office. Under a federal law enacted in 1995, lobbyists are required to disclose activities that could influence members of the executive and legislative branches. They must report how much they spent on lobbying activities for the first six months of each year. In a related news item, chemicals maker Ashland Inc. has hired the Livingston Group to lobby the federal government, according to a disclosure form. The firm will lobby on defense appropriations and energy policy, according to a form posted online Aug. 8 by the Senate''s public records office. They must register with Congress within 45 days of being hired or engaging in lobbying.