Legislators who supported Carbon Pricing Bill in 2015-2016 Session
| Legislators who supported | | |
| Carbon Pricing Bill in previous session | |
| Atkins, Cory | 14 | Middlesex |
| Balser, Ruth B. | 12 | Middlesex |
| Barber, Christine P. | 34 | Middlesex |
| Barrett, Michael J.* | 3rd Middlesex | |
| Benson, Jennifer | 37 | MIddlesex |
| Brownsberger, William N.* | 2nd Middlesex and Suffolk | |
| Cariddi, Gailanne M. | 1 | Berkshire |
| Coppinger, Edward F. | 10 | Suffolk |
| Creem, Cynthia S.* | 1st Middlesex and Norfolk | |
| Crighton, Bredon P. | 11 | Essex |
| Cronin, Claire D. | 11 | Plymouth |
| Decker, Marjorie C. | 25 | Middlesex |
| DiDomenico, Sal N.* | Middlesex and Suffolk | |
| Donato, Paul J. | 35 | Middlesex |
| Donnelly, Kenneth | 4th Middlesex | |
| DuBois, Michelle M. | 10 | Plymouth |
| Eldridge, James B.* | Middlesex and Worcester | |
| Farley-Bouvier, Tricia | 3 | Berkshire |
| Garballey, Sean | 23 | Middlesex |
| Garlick, Denise C. | 13 | Norfolk |
| Gentile, Carmine L. | 13 | Middlesex |
| Gordon, Kenneth | 21 | Middlesex |
| Hanlon Peisch, Alice | 14 | Norfolk |
| Hecht, Jonathan | 29 | Middlesex |
| Heroux, Paul R. | 2 | Bristol |
| Hunt, Daniel J. | 13 | Suffolk |
| Jehlen, Patricia | 2nd Middlesex | |
| Kafka, Louis L. | 8 | Norfolk |
| Keefe, Mary S. | 15 | Worcester |
| Khan, Kay | 11 | Middlesex |
| Kocot, Peter V. | 1 | Hampshire |
| Kulik, Stephen | 1 | Franklin |
| Lewis, Jason | 5th Middlesex | |
| Livingstone, Jay D. | 8 | Suffolk |
| Madden, Timothy R. | | Barnstable, Dukes & Nantucket |
| Mahoney, John J. | 13 | Worcester |
| Malia, Elizabeth A. | 11 | Suffolk |
| Mark, Paul W. | 2 | Berkshire |
| Mom, Rady | 18 | Middlesex |
| Moran, Michael J. | 18 | Suffolk |
| Murphy, James M. | 4 | Norfolk |
| Pignatelli, William Smitty | 4 | Berkshire |
| Provost, Denise | 27 | Middlesex |
| Puppolo, Anthony Jr. | 12 | Hampden |
| Rogers, David M. | 24 | Middlesex |
| Rushing, Byron | 9 | Suffolk |
| Ryan, Daniel | 2 | Suffolk |
| Sanchez, Jeffrey | 15 | Suffolk |
| Sannicandro, Tom | 7 | Middlesex |
| Schmid, Paul A. III | 8 | Bristol |
| Scibak, John W. | 2 | Hampshire |
| Smizik, Frank I. | 15 | Norfolk |
| Stanley, Thomas, M. | 9 | Middlesex |
| Story (Solomon Goldstein-Rose) | 3 | Hampshire |
| Swan, Benjamin (Bud Williams) | 11 | Hampden |
| Toomey, Timothy J. Jr. | 26 | Middlesex |
| Tosado, Jose F. | 9 | Hampden |
| Tucker, Paul | 7 | Essex |
| Utrino, Steven | 33 | Middlesex |
| Vega, Aaron | 5 | Hampden |
| Velis, John C. | 4 | Hampden |
| Walsh, Chris | 6 | MIddlesex |
| Wolf, Daniel A. * | Cape and Islands | |
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