Audit and Inspection Support for the National Institute of Environmental Health Sciences (NIEHS)
For more than 35 years, CSS has provided quality control assessment support to the National Toxicology Program (NTP) on studies relating to the toxicological effects of chemicals in the environment.
Audit and Inspection Support for the National Institute of Environmental Health Sciences (NIEHS).

For more than 35 years – CSS’s longest running contract – we have provided quality assessment support to the National Toxicology Program (NTP) for studies carried out on their behalf by contract laboratories regarding toxicological effects of chemicals in the environment.
CSS toxicologists verify that the required and appropriate experimental procedures were followed in every detail, that observations and results were accurately and completely recorded, that the archival data and specimens were properly organized, catalogued, and maintained to facilitate access, and that the conduct of each study was described accurately, and the data presented correctly in NTP Technical Reports. Our audit reports verify whether the information contained in the NTP Technical Report is supported by the original study records submitted to the NTP Archives.
Among the types of studies audited are pre-chronic toxicity, chronic toxicity/carcinogenicity, Reproductive Assessment by Continuous Breeding (RACB), Modified One Generation (MOG), developmental toxicity (including teratological endpoints), behavioral and neurotoxicity, immunotoxicity, and toxicokinetic. Our audit tasks have recently been expanded to include draft manuscripts of research studies being prepared for publication.
Example studies include:
Bisphenol A (BPA) used to manufacture polycarbonate plastics. This type of plastic was used to make some types of beverage containers, compact disks, plastic dinnerware, impact-resistant safety equipment, automobile parts, and toys;
Radiofrequency radiation emitted by cell phones;
Polyfluoroalkyl substances (PFAS) used in an extensive number of consumer products (Teflon). These ‘forever chemicals’ are extremely resistant to degradation in the environment;
Glyphosate, the most heavily used herbicide world-wide (the active ingredient in Roundup).
Additional Projects
Decontamination Field Tests for EPA
CSS staff helped design, plan for, and implement field tests of decontamination technologies and methods using MB for EPA’s Consequence Management Advisory Division.
Analytical Support for the Drinking Water Emergency in Flint, Michigan
Helping 100,000 Residents Affected by Elevated Lead Levels in Local Water Supply Lead contamination found in the drinking water in Flint, Michigan had a catastrophic impact on the community and its residents. CSS supported EPA’s response to the crisis by providing mobile and fixed analytical laboratory services and data review. Over a nine-month period, our…
Construction and management of emergency housing solutions
Providing Emergency Housing and Base Camp Services for Government, and Private Companies nationwide. About this Partnership CSS has formed a strategic partnership with GFP Response, a premier emergency response solution provider. GFP is a premier emergency response solution provider. Services include emergency mobile services, specializing in base camp solutions and emergency management. Our partnership with GFP…

Get in touch
Contact us to learn more about our projects, capabilities, solutions, and service offerings.
