The following is an excerpt from the SEC website:

Thursday, September 15, 2011
"Texas Federal Court Bars Two Men from Promoting Alleged Tax Scam Involving Fictitious Methane at Landfills
Customers of Pair Allegedly Claimed at Least $2.6 Million of False Tax Credits
“WASHINGTON - A federal court in Beaumont, Texas, has permanently barred two men from promoting an alleged tax fraud scheme involving bogus tax credits for the production of methane gas from landfills, the Justice Department announced today. Ronald Fontenot and Anthony Burrell consented to the civil injunction order against them without admitting wrongdoing. The order was signed by Judge Marcia A. Crone of the U.S. District Court for the Eastern District of Texas.
According to the government complaint , which was originally filed in Florida, the scheme involved bogus federal income tax credits available to producers of fuel from non-conventional sources. The government suit alleges that George Calvert and Gregory Guido of Florida, both previously enjoined and criminally convicted as a result of their involvement, concocted the scheme and promoted it through tax preparers like Fontenot and Burrell, who acted as sub-promoters to individual customers. The 32 defendants named in the civil injunction lawsuit allegedly helped customers claim more than $30 million in tax credits for the production and sale of fuel from landfill gas facilities that either did not exist or belonged to others. According to the complaint, Fontenot, of Lake Charles, La., and Burrell, of Livingston, Tex., are allegedly responsible for preparing federal income tax returns for customers that claimed at least $2.6 million in false tax credits.”