Northeastern states prepared for a blizzard expected to slam into the region Friday, with two big storm systems converging from the Midwest and the Atlantic seaboard, news reports said.

WASHINGTON — Less than three months since Superstorm Sandy devastated the East Coast, transportation and federal relief officials still involved in the recovery effort said the lessons learned will save lives and limit the economic damage of future disasters.

The Transportation Research Board said the new federal transportation funding law and the effects of Superstorm Sandy will be among the topics discussed at its meeting later this month.

Floodwaters left by Superstorm Sandy sent many commercial trucks to the junk yard, and service providers are warning that those vehicles that can be repaired probably will face recurring maintenance issues.

ANAHEIM, Calif. — Superstorm Sandy dramatized the need for better contingency planning to keep products flowing during a major disruption, a supply chain executive said at an industry meeting here last week.

The Department of Energy is releasing 100,000 barrels of diesel fuel to the state of Connecticut as part of the ongoing recovery efforts from Hurricane Sandy.

New York City and Long Island began rationing diesel and gasoline Friday in the region still coping to recover from last week’s battering by Hurricane Sandy, news services reported.

The Federal Motor Carrier Safety Administration said it has set up an “interstate petroleum transport team” to ensure the fastest and most efficient movement of fuel to regions hard hit by Hurricane Sandy.

Several East Coast refineries were struggling to resume full operations following Hurricane Sandy, as gasoline and diesel supplies in the New York and New Jersey region ran low and filling stations attempted to come back online in the two states, news services reported.