ABF, Teamsters Agree To 30-Day Extension On Negotiations by Chris Bahn Posted 3/29/2013 09:31 am Updated 3 years ago ABF Freight System Inc. and the Teamsters have agreed to a 30-day extension on contract negotiations. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access stories older than 20 days. Purchase Now Already have archive access? Login to view this article.