Wash Sale selling a Municipal Fund

If you sell a national municipal bond mutual fund and immediately buy a single-state municipal bond fund, would that be considered a wash sale? The two funds have different expense ratios, different portfolio managers. They also have materially different risk profiles: The national fund spreads credit risk across many states and issuers. The state-specific fund is concentrated in one state's economy and municipal issuers. The tax treatment also differs: The national fund generally provides feder