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CHR is the company you call for quality, personalized, and cost-effective corporate health examination and service needs. 
CHR is here, there, everywhere...

"The Industry Leader in Occupational Health Since 1986!"

White Glove Service is Our Standard of Care

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CHR has earned the respect of Fortune 1000 companies with expertise you can trust.

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(800) 867-0933


1375 Piccard Drive

Suite 275

Rockville, MD 20850

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Training Courses

AAOHN: Respiratory Protection Education Program for Healthcare Workers - Available at No Charge.

Online Learning



Commercial Driver Medical Examiner Online Training via ACOEM




Spirometry, Spirometry Refresher, Respirator Fit-Testing Training Courses


Online Courses:

Spirometry Refresher

Spirometry Training


More Information:

Dr. Mary Townsend



CAOHC Certification
CAOHC Re-Certification
NIOSH Certification


Course Collections:



The DOT Examiner's Most Trusted Resource! For a full listing of our books visit OEM Press.

Medlock Consulting is a physician search firm dedicated to locating, evaluating, and facilitating the placement of quality physicians in superior environments. To us, this means never taking shortcuts and always maintaining professional and personal integrity.


Nyla Medlock

Medlock Consulting

Phone 806-744-5250

Cell 806-239-NYLA(6952)

"Defining the Future of Physicians Globally"

Email Nyla


International Safety Systems, Inc. (Global EHS Service Provider)
New: Webinar Brochure



Occupational Health Connections, Inc. (OHC) is a distinguished leader in occupational and employee health staffing and recruitment. For job opportunities, please visit: OHC website



Visit Relief EHS, LLC
Relief EHS is uniquely qualified to provide answers to your environmental health & safety (EHS) questions, make it easier for your business to comply with regulations, and help you achieve EHS goals while minimizing costs and potential liability.



PKB Consulting, LLC
Patricia K. Bertsche, PhD, FAAOHN - Occupational Health & Wellness Consultant, Leader in Global Occupational Health Program Development & Evaluation - Email Pat



CHR Newsletter - March 7, 2019

The quality of CHR's services and the services provided by the clinics in our network is very important. Thank you for your feedback and support. Our clients say it best...

"It was a pleasure working with CHR and your team. Very professional organization that cares about the integrity of the service they provide. I will continue to sing your praises with my future co-workers and organizations that could benefit your business, because I know you are just that great."

"We do so appreciate your support with this funding over the years. You have been a real friend of Occupational Health and Environmental Nurses for a long time."
-AAOHN Foundation

Regulators Make it Easier to Upgrade Commercial Drivers Licenses

The Federal Motor Carrier Safety Administration (FMCSA) announced on March 5 a final rule streamlining the CDL upgrade process that it says will cut costs. The rule could ultimately help attract and retain drivers.

Why the Risks of Occupational Accidents Still Fall on Deaf Ears

The risk of falling from heights is not being managed and prioritized according to its devastating effects on workers' well-being and safety. Why have we not found a solution to fall prevention that is able to decrease the number of annual accidents effectively?

Seize the Opportunities Ergonomics Can Mean for Your Workplace

Unlike other types of injuries, such as a slip and fall, ergonomic injuries are deceiving. They usually cannot be seen, unlike, say, a broken leg, and they can take months or even years to develop.

OSHA Reminds Employers to Prevent Workplace Carbon Monoxide Exposure

Carbon monoxide overexposure symptoms can include headaches, dizziness, drowsiness, nausea, vomiting, or tightness across the chest. OSHA reminds employers to take necessary steps to protect workers from the serious and potentially deadly effects of carbon monoxide exposure.

Deadly Staph Infections Still Threaten the U.S.

While MRSA is often better known, all staph can be deadly, and healthcare providers and administrators can take prevention steps to protect their patients.

Wearable Technology Could Boost Workplace Safety, but Concerns Remain

In the safety world, "wearables" can include "smart" personal protective equipment, glasses with heads-up displays and hard hats with sensors. The greatest benefit of this technology is that, as a worker, you're not alone in terms of your safety.

How to Stay Safe When Working in Freezing Temps

Whether you're working in a year-round cold environment such as cold storage or you're working construction in the dead of winter, knowing a few cold weather safety tips can help you remain both functional and comfortable on the job.

Occupational Health Research Round-up: March 2019

Stories include gastrointestinal illness and work stress, resilience in first responders, quality standards in EAPs, and managing employees with dementia.

Upcoming Conferences

  • PAAOHN, March 13-14, 2019
  • AOCOPM, March 20-22, 2019
  • NCAOHN, March 20-22, 2019
  • AAOHN National Conference, April 8-10, 2019
    Booth Number: 509
  • LAOHN, July 24-26, 2019
  • More to come; Stay tuned...

Job Openings

Occupational Health Registered Nurse

Corporate Health Resources (CHR) is seeking an Occupational Health Registered Nurse to perform case management, arrange initial medical appointments for work-related illness/injury, and coordinate the medical surveillance program.

The job is full-time: two days/week in the Southern San Francisco area, 2 days/week in Sunnyvale, and 1 day/week in Redwood City. The company has signed a lease to consolidate all three locations in Southern San Francisco in 2020.

CEU and recertification reimbursements are available, along with an excellent benefits package. CHR is an Equal Opportunity Employer.

For more information, please contact

WBENC-Certified Women's Business Enterprise

Email Rhett Suhre for More Information.

CHR is Celebrating 32 Years!

CHR is a TRAC-Certified Vendor
Learn more about TRAC

Health and Safety Works, LLC

Health and Safety Works, LLC provides training, consulting, and research services in support of Occupational Health (OSHA), Transportation Health (FMCSA) and Health and Wellness. Read more about Health and Safety Works or email HSW Founder and CEO, Elaine M. Papp RN, MSN, CM, COHN-S FAAOHN.