A state Assemblyman has quickly withdrawn a bill that would require paid registration and license plates for all bicycles in the state, whether ridden by adult or child.

The Assemblyman, Michael G. DenDekker, Democrat of Queens, said he had been flooded with complaints from people who lived outside the city that they were being taxed and regulated to address concerns about unsafe cycling that existed largely in New York City. The measure had also drawn fire from cycling advocates in the city and elsewhere.

On Feb. 18, Mr. DenDekker had introduced two bills, A5429 and A5430, that would require commercial cyclists to pay a $50 registration fee and all other cyclists to pay a $25 registration fee. He hatched the measure, he said, in response to residents' complaints that unsafe cyclists were not accountable. "Constituents were complaining that if a bike is involved in any incident and they ride away, there is no way to identify them," he said.

Mr. DenDekker said he planned instead to look into measures "to have stricter enforcement of existing bicycling rules and regulations." Adding his voice to the growing chorus of complaints about the proliferation of bike lanes in the city, he said that when the government creates a bike lane, "it should be beholden on that municipality to enforce measures of bike safety and to monitor those lanes that they've created."

While state laws are often written to apply only to New York City by specifying that they affect cities with populations of more than a million, Mr. DenDekker said that such an approach would not work in this case because the state Department of Motor Vehicles could not be compelled to issue a license plate for just one entity.

A City Councilman, Erich Ulrich, has also said he would try to get a city law passed to require identification tags for cyclists, but no measure has been introduced yet. Mr. Ulrich did not immediately respond to a request for comment on Mr. DenDekker's decision.

Paul Steely White, executive director of Transportation Alternatives, the clean-transportation advocacy group that opposed the bill, applauded its withdrawal. "Across New York State, the people have spoken, and they agree that bicycle license plates are a bad idea," Mr. White said in a statement. "It is comforting to know that the State's resources will not be directed away from proven life-saving enforcement on our streets."