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The Boston Globe

Metro

Fuel savings bring worry about gas tax revenue

State officials eye new funds for road upkeep

The rise in both the fuel efficiency of new cars and trucks and the popularity of hybrid vehicles threatens to eventually undermine the effectiveness of the gas tax, some transportation officials and lawmakers fear, forcing them to search for novel ways to pay for the escalating cost of caring for the state’s roads and bridges.

One Republican lawmaker has proposed an additional registration fee for fully electric vehicles. Some officials suggest looking at charging all motorists per mile traveled; others say more tolls are the answer.

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