State tax filing

Very true.   Each brokerage may have their own list, but I just checked Fidelity, and each year they publish a PDF file of each of their Mutual funds that had US Govt securities, and the % of the yearly distribution that was from US Govt bonds...

 

Then they put a "*" next to any fund where the % wasn't high enough to be used for "California, Connecticut, and New York"  ... (so I suspect those 2 other states have the same limitations)

____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*