Comments by Member 14623559 (Top 4 by date)

The Positive Lookbehind Assertions, (?<=NA - FY\d\d [A-Z][A-Za-z][A-Z]|(?<=NA - FY\d\d [A-Z][A-Z][A-Z][A-Z])), should capture text in parenthesis ONLY when followed by "NA - FY \d\d". I have a link to regex101 in my original question that could help. If not thank you for the help anyways!

No, it takes off the one not following the pattern (MVSOT (Maritime Vessel)) which I don't want it to do.

Thank you. Not familiar with Linq. Know it can be done as Regex and that's what I'm familiar with.