The Washington State Department of Corrections quietly rolled out a new policy via a memo on their website last month which disallows books to be donated to prisons via nonprofit organizations. So quietly, in fact, that one of the largest nonprofits that works to get donated materials to prisoners was taken by surprise to discover the change. They weren’t informed before it was implemented.
Source: Washington Department of Corrections Quietly Bans Book Donations to Prisoners From Nonprofits