It was a voluntary organization to ensure adherence to Japanese obscenity laws, which prohibit any display of genitals.
[1][2] NEVA was founded in 1972 by Toei Video, Nikkatsu, and Japan Vicotte as the Adult Video Voluntary Regulatory Ethics Committee (成人ビデオ自主規制倫理懇談会, Seijin Bideo Jishu Kisei Rinri Kondan-kai), Its headquarters were in the Chūō ward of Tokyo.
[3] In response, on August 23, 2007, the Tokyo Metropolitan police raided the offices of NEVA and several AV studios (including h.m.p.)
of h.m.p., one of the board members of NEVA and the head of the inspection division, were arrested for the sale and distribution of indecent material because the digital mosaic used was too revealing.
[5] In April 2008, NEVA announced it would be forming a new organization to provide reforms and uniform screening practices for videos.