21 Note that the Environmental Economics Advisory Committee ( EEAC ) of the SAB advised EPA to adjust WTP for increases in real income over time , but not to adjust WTP to account for cross-sectional income differences because of the sensitivity of making such distinctions , and because of insufficient evidence available at present ( EPA-SAB-EEAC-00-013 ) .
The EEAC neglected to advise the EPA about the WTP .