Maine's own legislative style guide discourages the use of the serial (Oxford) comma.
Notes on verification
Directly confirmed by the text of the Maine Legislative Drafting Manual itself, plus multiple independent legal and news sources discussing the O'Connor v. Oakhurst Dairy case.
Sources
- A Missing Oxford Comma Just Changed the Course of a Court Case (smithsonianmag.com)
- https://blogs.loc.gov/law/2017/06/the-law-and-punctuation/ (blogs.loc.gov)
- https://www.ca1.uscourts.gov/sites/ca1/files/citations/Draftman2009.pdf (ca1.uscourts.gov)
- https://scribes.org/wp-content/uploads/2022/10/Marcello-8.23.21.pdf (scribes.org)
- https://www.boston.com/news/business/2017/03/16/lack-of-oxford-comma-costs-maine-company-millions-in-overtime-dispute/ (boston.com)
- https://www.cnbc.com/2017/03/16/lack-of-oxford-comma-costs-maine-company-millions-in-overtime.html (cnbc.com)
- https://www.isba.org/committees/governmentlawyers/newsletter/2017/05/the10millioncomma (isba.org)