Are there any quality standards the DEF must meet?CCJ Staff (CCJ)Aug 12, 2014Updated Aug 28, 2014 Yes, DEF needs to meet the ISO 22241 quality standard. Add us as a preferred source on Google Looking for your next job?Careersingear.com is the go-to platform for the Trucking industry. Don’t just find the job you need; find the job you want with the company that wants you!Top StoriesCareer Leadership AwardScouts honor: Dan Umphress named CCJ Career Leadership Award recipientFrom 'four D and two F" student to the pinnacle of truck maintenance, there's not much Dan Umphress hasn't seen (or fixed).Safety & ComplianceFMCSA issues warning to fleets selling or leasing USDOT, MC numbersRegulationsWorkforce Pell Grant unlocks funds for CDLs, diesel tech certsEconomic trendsClass 8 truck orders surge 159% in February, signaling cyclical recoveryFeatured SponsorLearn the top ways AI impacts fleet operations.Get all the info on the top 250 trucking companies in AmericaView, sort and download the trucking industry’s most comprehensive ranking of for-hire carriers in North America, based on a blend of metrics including fleet size, annual revenue and number of drivers.White PapersGood for the Fleet, good for the communityImprove service for your residents, increase safety, and save taxpayer dollars with video telematics and AI for your public sector fleet.