Pervasiveness (other)
Pervasiveness generally refers to something being present in all parts of a particular thing or place, and is used as a term in: * Pervasiveness doctrine * Pervasive developmental disorder The diagnostic category pervasive developmental disorders (PDD), as opposed to specific developmental disorders (SDD), is a group of disorders characterized by delays in the development of multiple basic functions including socialization and co ...

Pervasiveness Doctrine
In broadcast law (particularly within U.S. law), the pervasiveness doctrine is the doctrine stating that media content of broadcasts is subject to regulation because broadcast radio waves are available to anyone and therefore "uniquely pervasive". In general, profanity and sex, or other adult material deemed "indecent" by a broadcasting authority, may not be broadcast outside of overnight "watershed" or "safe harbor" hours when children are unlikely to be awake. Material deemed " obscene" may still be prohibited at all times. This doctrine has generally been held to apply only to the AM broadcast band (medium wave), FM broadcast band (VHF band II), and TV broadcast bands (VHF band I and band III, and UHF). It does not apply to cable TV, cable radio, satellite TV, satellite radio, or other forms of electronic media, because although they also use publicly owned airwaves, these are subscription services which the listener or viewer must explicitly request, and are subject to con ...
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