http://conservationtools.org/model-documents
WeConservePA published the seventh edition in 2016 and has subsequently updated this edition several times, most recently in 2023. The publishing history of the model is as follows: 1st edition – Jul. 2005; 2nd edition – Apr. 2006; 3rd edition – Sep. 2007; 4th edition – Apr. 2008; 5th edition – Sep. 2008; 6th edition – Oct. 2011; 7th edition – Dec. 2016.