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CHR is the company you call for quality, personalized, and cost-effective corporate health examination and service needs. 
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(800) 867-0933


1375 Piccard Drive

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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


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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 - June 28, 2018

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...

"I truly love working with CHR and the level of expertise you give to us for support."

Get Prepared for Heat

As summer approaches, now is the time to create safe work practices for outdoor work in the heat. Some workers need to be extra-cautious when working in heat, and may need to drink more water and take more frequent breaks. Certain health conditions or medications can reduce tolerance to heat.

OSHA to employers: Submit Form 300A by July 1

OSHA is reminding certain employers to submit their 2017 injury and illness Form 300A data by July 1. The rule applies to firms with 250 or more employees and those with 20 to 249 employees in certain industries with historically high occupational injury and illness rates.

NSC Urges Focused Driving Over Fourth of July Holiday

About 164 people may be killed in roadway crashes during the upcoming Fourth of July holiday period, and an additional 18,600 may be seriously injured, according to estimates from the National Safety Council.

Why 9 to 5 Isn't the Only Shift that Can Work for Busy Families

A new study finds that the impacts of parent work schedules on children vary by age and gender, and often reflect which shift a parent works. Rotating shifts -- a schedule that varies day by day or week by week -- can be most problematic for children.

First National Dialogue on Highway Automation Meeting Under Way

The first of the National Dialogue on Highway Automation meetings hosted by the Federal Highway Administration is taking place this week in Philadelphia. The remaining events are set for Aug. 1-2 in Seattle, early September in Chicago, Oct. 24-25 in Phoenix, and the week of Nov. 12 in Austin.

DOL Rolls Out New Health Care Plan for Small Businesses

The U.S. Department of Labor (DOL) says its new Association Health Plans (AHP) rule will enable small companies to more easily afford to offer health insurance to their employees.

NIOSH Study Shows Increase in Health Insurance Coverage

Americans employed in the farming, fishing, and forestry and construction and extraction industries, which are among the most hazardous, ranked some of the highest as uninsured. Lack of health insurance has been associated with poorer health status.

Behavioral Wellness: The Unseen Occupational Realities

Over the last decade, a bounty of evidence-based research has enhanced our understanding of the occupational toll that the fire service takes on firefighter health and wellness.

Harvard Study Finds Flight Attendants Face Higher Risk of Cancer

U.S. flight attendants experience a higher risk of several forms of cancer, leading researchers to call for more study on how to minimize the occupational exposures and conditions they suspect are contributing to the disparity.

Avoiding Injury Mismanagement at Workplace Health Clinics

Drs. Aaron Tustin, Kathleen Fagan, and Michael Hodgson dig into the topic of on-site workplace clinics where injured workers receive health care.

Occupational Health Research Round-up: June 2018

Stories include living and working with chronic headaches, work-related physical fatigue, real reasons for long-term sickness absence, and heart disease and fast-food outlets.

Upcoming Conferences

  • MAOHN, Nov. 1-2, 2018
  • NECOEM/MaAOHN, Nov. 29-30, 2018
  • More to come; Stay tuned...

Job Openings

Occupational Health Triage Call Center Lead Nurse (Night Shift Preferred)

CHR is seeking an experienced Occupational Health Registered Nurse to help establish and lead a telephone triage call center. For further information, please contact

WBENC-Certified Women's Business Enterprise

Email Rhett Suhre for More Information.

CHR is Celebrating 31 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.