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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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"The Industry Leader in Occupational Health Since 1986!"

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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 - September 6, 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."

Protecting Temporary Workers from Occupational Health and Safety Hazards

The American Board of Industrial Hygiene (ABIH) reminds employers of the need to protect full-time, part-time, and temporary employees from all types of workplace hazards.

Why Being "OSHA Legal" Isn't Enough

Forward-thinking companies know that merely complying with OSHA's 40-year-old standards puts their investments--including worker and downstream user safety--at risk.

New Federal Policies on Worker Health and Safety, Enforcement Action Recapped in OHS Yearbook

The "Year in U.S. Occupational Health & Safety" yearbook is an effort to document in one place the most significant policy changes, advocacy activities, journalism and research over the past 12 months.

The Top 10 Elements of a Stellar Safety Program

The theme of worker involvement and engagement rang loudly throughout this presentation, which stressed the importance of making sure input is received and taken seriously. View the top methods to an effective, outstanding program in the slideshow.

FMCSA Seeking Input on Proposed Changes to Trucker Hours-of-service Rules

The Federal Motor Carrier Safety Administration is asking for comment on an advance notice of proposed rulemaking on its hours-of-service regulations for commercial truck drivers.

Survey Reveals Workplace Hand Washing Habits

Fifty-six percent of workers reported frequently or occasionally seeing work colleagues leave the restroom without washing their hands, according to an annual Healthy Hand Washing Survey.

5 Essentials for Advancing Your Program & Achieving Success

At different levels, safety professionals at corporate, regional, site, or other localized areas need ongoing and active leadership support. So, here's a top five list.

Winterizing Employees Who Work Outdoors

Introducing cold weather work tips and other outdoor cold weather safety concepts in trainings during the early fall can help workers get into the mindset.

Walking Can Be Dangerous to Your Health

An average of 16 pedestrians are killed each day in the U.S. -- a total of 5,987 in 2016 alone -- and the National Transportation Safety Board (NTSB) wants to do something about it.

Upcoming Conferences

  • GAOHN, Sep. 6-8, 2018
  • IAOHN, Sep. 14, 2018
  • NCAOHN, Oct. 31-Nov. 2
  • MAOHN, Nov. 1-2, 2018
  • OAOHN, Nov. 1-3, 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.