Editing Single non-transferable vote (section)

===Puerto Rico===
In [[Puerto Rico]], SNTV is known as ''at-large representation'' ("representación por acumulación" in Spanish), SNTV is used to elect the 11 at-large members in each of the House of Representatives and the Senate. Under ''at-large representation'', political parties vary the ballot order of their candidates across electoral divisions, in order to ensure each candidate has a roughly equal chance of success. Since most voters choose the candidates placed at the top of their party lists on their ballots, at-large candidates from the same party usually obtain approximately equal vote totals. When the party's candidates are equally supported, the most-popular party is often able to take six seats of the 11.

The two major Puerto Rican political parties, the [[Popular Democratic Party (Puerto Rico)|Popular Democratic Party]] and the [[New Progressive Party (Puerto Rico)|New Progressive Party]], usually each run six candidates for the 11 at-large members in each of the House of Representatives and the Senate, while the much smaller [[Puerto Rican Independence Party]] runs a single-candidate slate for the at-large members in the Senate and the House of Representatives. The SNTV-elected members are a small part of the chambers compared to the members elected in the sixteen Senate districts, elected by block voting, and the forty House districts, elected by [[first-past-the-post voting]].