16th Legislative Assembly of Puerto Rico
The 16th Legislative Assembly of Puerto Rico will meet from January 2, 2009, to January 1, 2013. All members of the House of Representatives and the Senate were elected in the General Elections of 2008. The House and the Senate both have a majority of members from the New Progressive Party.
Leadership
Senate
House of Representatives
Changes in membership
Senate
| District | Former senator | Reason for change | Successor | Date of successor's installation |
| VIII - Carolina | Héctor Martínez | Resigned March 12, 2011 after being found guilty for corruption. | Roger Iglesias | June 25, 2011 |
| I - San Juan | Roberto Arango | Resigned August 28, 2011 after personal scandal. | Liza Fernández | May 10, 2012 |
| VI - Guayama | Antonio Soto Díaz | Resigned September 14, 2011 due to investigation on his campaign finances. | Miguel A. Rodríguez | May 10, 2012 |
| At-large | Eder Ortíz | Resigned December 31, 2011 to become PPD Electoral Commissioner. | Angel Rodríguez Otero | August 24, 2012 |
House of Representatives
| District | Former senator | Reason for change | Successor | Date of successor's installation |
| At-large | Iris Miriam Ruíz | Resigned on March 1, 2010 after being appointed Ombudswoman. | José Torres Zamora | June 2, 2010 |
| 16 | Iván Rodríguez Traverzo | Expelled on December 10, 2010 after accusations of bribery. | Eric Alfaro | April 11, 2011 |
| At-large | Luis Farinacci | Resigned January 19, 2011 after allegations of domestic violence. | Pedro A. Rodríguez | March 3, 2011 |
| At-large | Rolando Crespo | Resigned February 27, 2011 after positive drug test. | José Enrique Meléndez | May 23, 2011 |
| At-large | Héctor Ferrer | Resigned March 15, 2012 after allegations of domestic abuse. | Eduardo Ferrer | May 24, 2012 |
| 4 | Liza Fernández | Resigned to fill vacant seat in the Senate of Puerto Rico. | Víctor Parés | May 24, 2012 |