For example, CAP's poster industry members can invoke mandatory pre-vetting for advertisers who have broken the CAP Code on grounds of taste and decency or social responsibility – the pre-vetting can last for two years.
Pre-vetting has echoes of Margaret Thatcher's 1980s tactic of trying to starve Irish republicanism of the "oxygen of publicity" which ended with Gerry Adams and other Sinn Féin spokespeople having their voices dubbed by actors.
The comedian said earlier that she had refused to let the Democrats pre-vet her material.
Ms Jowell even indicated she would consider a system in which watchdogs had the power to pre-vet programmes, a move that would horrify broadcasters now accustomed to "light touch" regulation.
Another promise was suffrage, and at the heart of the current movement – called the Umbrella Revolution or Occupy Central – is the demand that Hong Kong residents be allowed to choose Hong Kong's leaders themselves, instead of having candidates pre-vetted by Beijing.
This incapacity, as likable as it is at times almost pathological, led him to such errors of misplaced good faith as his nomination of Merrick Garland to the Supreme Court, in what was clearly the sincere belief that a Justice pre-vetted by Republican worthies would actually have a chance of being treated seriously.
The company's process of pre-vetting all new applications is believed to have spared its devices from a major attack.
That would potentially cripple the social media industry, requiring extensive pre-vetting of any content they display.
If it weren't for section 230, today's social media giants would have long been bogged down with suits based on what their users post, with the resulting necessary pre-vetting of posts likely crippling these companies altogether. .
Crew and Toptal pre-vet their freelancers, but all the management issues remain.
Thing is, Kickstarter used to pre-vet all projects on its platform.
