Jobs Act

Is the phrase “jobs act” a mistake, a possessive genitive (without the apostrophe), or an expression like  “centuries old tradition” with a plural reference? Carla.

 “Jobs Act” is correct. This is “an act about jobs” and so “jobs” is effectively an adjective. The apostrophe in the genitive usually denotes personal possession, rather than description.  “Job’s Act” would sound like the action of the biblical figure of Job (Giobbe in Italian).