In the four-month period following the April 1, 2018 ELD hard enforcement date (April – July 2018), the industry’s hours of service (HOS) compliance rate is showing a 45% improvement over the four-month period just prior to the December 2017 compliance date. See FMCSA’s compliance infographic here: https://www.fmcsa.dot.gov/sites/fmcsa.dot.gov/files/docs/regulations/enforcement/406471/eld-inforgraphic-hos-compliance-july2018.pdf. No word yet from FMCSA on whether ELD use is having a positive effect on industry crash rates.