He is also an occasional substitute teacher for Kennett High School in Conway.
In the 2011–2012 legislative session, Tregenza was appointed to the Judiciary Committee, New Hampshire House.
On November 2, 2010, Tregenza won the election to the New Hampshire House of Representatives.
In 2010, a year in which Tregenza was up for re-election, he did not collect any money in donations.
This article about a New Hampshire politician is a stub.