Constitutional Law II
There are four types of forums:
Public forums are basically streets, parks, and sidewalks. Plus property by long tradition devoted to assembly and debate.
Designated unlimited public forums are defined by government fiat.
Designated limited public forums receive intermediate scrutiny for content-neutral regulation, likely intermediate scrutiny for content-based regulation, and strict scrutiny for viewpoint-based regulation.
All public property that is not traditionally or designedly open for speech is a nonpublic forum.
Regulation on nonpublic forums is usually tested as to the reasonableness in light of the purposes for which the property is lawfully dedicated with great deference to the regulation. However, if it is view-point based, dicta indicates that strict scrutiny would be used.