 LTL carriers have experienced trouble getting local governments to approve zoning permits for terminal facilities, a persistent and widespread problem that could blunt plans to expand their networks, said Greg C. Gantt, president and CEO of LTL carrier Old Dominion Freight Line Inc. Speaking at the SMC3 annual winter meeting in Atlanta on Monday, Gantt said that local officials appear to have a degree of animus toward trucking firms, for reasons he could not explain or rationalize. 