Executive Committee
The governing body of ECOS, other than the general membership, is the Executive Committee, composed of the officers, the chairs/vice chairs of the standing committees, one primary and one alternate State representative from each EPA region, one State representative from the non-contiguous States and territories, and two liaison officials with the National Governors' Association.
As of 10/15/09
| Officers | Title | Name |
| President | Michael Linder, Nebraska | |
| Vice-President | Richard Opper, Montana | |
| Secretary-Treasurer | Thomas Burack, New Hampshire | |
| Past President | David Paylor, Virginia | |
| Committees | Chair | Vice-Chair |
| Air | Amey Marrella, Connecticut | Dick Pedersen, Oregon |
| Water | Tom Easterly, Indiana | Lucy Edmondson, Massachusetts |
| Waste | John Mitchell, Kansas | Jay Ringenberg, Nebraska |
| Compliance | Cindy Tuck, California | Bob King, South Carolina |
| Planning | Leo Drozdoff, Nevada | Chris Korleski, Ohio |
| Cross-Media | Shari Wilson, Maryland | Ted Sturdevant, Washington |
|
Region |
Primary |
Alternate |
| I | Justin Johnson, Vermont | Amey Marrella, Connecticut |
| II | Pedro Nieves, Puerto Rico | New Jersey |
| III | Bob Zimmerman, Delaware | Barbara Sexton, Pennsylvania |
| IV | Trudy Fisher, Mississippi | Michael Sole, Florida |
| V | Doug Scott, Illinois | Vacant |
| VI | Teresa Marks, Arkansas | Steve Thompson, Oklahoma |
| VII | Vacant | John Mitchell, Kansas |
| VIII | John Corra, Wyoming | Vacant |
| IX | Cindy Tuck, California | Leo Drozdoff, Nevada |
| X | Dick Pedersen, Oregon | Larry Hartig, Alaska |
| Islands | Vacant | Laurence Lau, Hawaii |
| NGA Liaison |
Richard Opper, Montana |
Leo Drozdoff, Nevada |