Can I get a 60-day extension on a Non-O multiple entry visa based on marriage?

The 60-day extension on a Non-O multiple entry visa (based on marriage) can be granted at specific immigration offices in Thailand. Most offices allow this extension once per entry, meaning you can obtain it every time you enter on a new 90-day stamp from your Non-O visa. However, some offices restrict the extension to once per visa, meaning you can only use it once on any of the 90-day entries associated with your Non-O visa until you apply for a new visa.