Politicians might be tempted to call it the Weiner rule.

But a guideline prohibiting full or partial nudity when candidates sit for city-financed campaign videos has been on the books about eight years, and first got noticed when another body-obsessed candidate made a bid for City Hall.

A rule banning full nudity was already on the books, but the board outlawed partial nudity when Times Square’s “Naked Cowboy” Robert Burck decided to run for mayor in 2009.