Environmental Restoration Act of 2003 - Amends the Internal Revenue Code to establish a waste coal energy production per ton credit equal to $1.50 per million Btu of heat input utilized by the taxpayer to produce energy in an eligible facility from qualified waste coal during the 10-year period beginning on the date the facility was originally placed in service (or, if later, the date of the enactment of this section). Permits transfer of the credit through sale and repurchase agreements.