A coalition of governors is warning the Federal Communications Commission not to interfere with state laws preventing cities from building out their own Internet services.

The National Governors Association told the FCC in comments filed on Friday that it should “honor the longstanding partnership” between the federal government and states “and avoid triggering unintended consequences” by blocking laws in North Carolina and Tennessee.

The FCC has been under pressure to block laws in the two states, which prevent the cities of Wilson and Chattanooga from expanding their city-owned broadband Internet services to compete with private companies like Comcast or Time Warner Cable. Both cities filed petitions last month asking the FCC to “take immediate action” and invalidate the state laws, which FCC Chairman Tom Wheeler has said his agency has the power to do if the laws hamper competition.

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