Data Quality

ESW America™, a division of ESW Group, is a leading independent emissions testing company based in Montgomeryville, PA. Our state-of-the-art emissions testing facility is equipped to perform a wide variety of EPA, CARB and EU compliant services. Our facility is staffed by an experienced team of highly skilled test engineers, technicians and fabricators. With a combined total of over 100 years experience, ESW America is equipped to perform EPA and CARB emissions certification testing, durability testing, performance testing and fuel economy testing for a wide variety of engines and chassis. Contact ESW America to learn more about our testing services and experience.


ESW America delivers a high caliber of customer service and propriety performance to a assist companies in meeting government engine emissions regulations. Our qualified team of engineers, technicians and support staff are committed to providing high quality testing services in a cost effective manner that meets strict testing protocols and confidentiality requirements.

Data Quality

  • Established ISO 9001/2008 accredited facility for Emissions Testing Services
  • Active participant in EMTC/EPA/EMA bodies
  • Regulations: 40 CFR Part 86, 89, 90, 92, 1048, 1051, 1065 and ISA 8178

Data Quality Controls

  • Real time quality checks
  • Baseline emission program
  • Round robin (lab correlation) programs
  • Monthly/yearly calibration database
  • Weekly data quality council
  • Established uncertainly of measurement
  • Established correlations with OEM labs
  • Active lab correlations: Environment of Canada, EPA Round Robin

Confidentiality Measures

  • Confidentiality of customer products, data and information is a top priority
  • Independent test facility: direct client to lab relationship
  • Separate parts/vehicle storage for each client
  • Firewall protected test data server
  • Protected physical test logs
  • Access protected test cells for authorized personnel only
  • Non-disclosure agreements (NDA)
  • Separate office space available