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REHS/RS Job Analysis Update

 

The REHS/RS exam is based on the results of a Job Task Analysis (JTA) study. A summary of the results of the most recent study, conducted in 2006, is described here.

The National Environmental Health Association (NEHA) entered into a contract with Environmental Health Testing, LLC (EHT) on August 1, 2005. EHT then began the process of updating the JTA for the REHS/RS exam.

A survey was conducted to validate the content areas, tasks, and knowledge statements. About 500 surveys were issued randomly to those holding the NEHA REHS/RS credential.  In the survey, respondents rated:

  • The frequency with which they personally performed each task and the criticality of each task;
  • The percentage of time they spent in each of the 14 content areas of practice; and
  • The frequency with which they used each knowledge statement in their own work and the criticality of each knowledge statement.


Why does the JTA need to be updated?

  • Periodically, a JTA needs to re-evaluated in order to validate its relevancy to current practice.


How do the changes in the JTA effect the REHS/RS?

  • Below is the new JTA for the REHS/RS exam. The updated JTA reflects the current practice of an REHS/RS, according to the results of the survey. The REHS/RS exam will be updated to reflect this JTA. While the new JTA may appear to look very different from the old JTA, it is very similar. All the information on the new JTA was on the older version, it has simply been rearranged in this format to better represent the current practice of an REHS/RS.


When will the new REHS/RS exam be available?

  • The new REHS/RS exam that will reflect the updated JTA, will be available as of May 1, 2006.


Will an updated REHS/RS study guide be available?

  • Yes, a third edition of the REHS/RS study guide will be available for purchase through the NEHA Bookstore as of April 1, 2006.


 2006 REHS/RS Job Task Analysis

Task/ Knowledge Statement % of Exam (# of Questions)
I. GENERAL ENVIRONMENTAL HEALTH 14% (35 questions)
A. Conduct Environmental Health Investigations, Inspections, and Audits  
B. Conduct Epidemiological Investigations  
C. Collect Samples and Specimens for Lab Analysis  
D. Perform Routine Field Tests and Measurements  
E. Plan Land Use  
F. Review Construction Plans  
G. Environmental Microbiology  
H. Contamination Control  
II. FOOD PROTECTION 14% (35 questions)
A. Inspection and Investigation of Food Establishments  
B. Food Safety, Protection, Quality and Storage  
C. Temporary Events with Food Service  
D. Transportation of Food  
III. WASTEWATER 8% (20 questions)
A. Conduct Investigations of Wastewater Management Systems  
IV. SOLID AND HAZARDOUS WASTE 4% (10 questions)
A. Knowledge of Waste Management Systems  
B. Conduct Waste Management Investigations  
C. Public Education  
V. POTABLE WATER 8% (20 questions)
A. Conduct Sanitary Surveys of Potential or Existing Water Systems and Watersheds  
VI. INSTITUTIONS AND LICENSED ESTABLISHMENTS 12% (30 questions)
A. Understand the Health Hazards and Sanitation Problems of Institutions  
B. Conduct Epidemiological Investigations of Institutions  
C. Conduct Investigations of Facilities, Institutions and Licensed Establishments  
VII. VECTORS, PESTS AND POISONOUS PLANTS 6% (15 questions)
A. Develop Controls for Vectors, Pests, and Poisonous Plants  
VIII. SWIMMING POOLS AND RECREATIONAL FACILITIES 8% (20 questions)
A. Inspect Swimming Pools, Hot Tubs, and Spas  
B. Inspect Natural Recreation Areas and Facilities  
C. Amusement Parks and Temporary Mass Gatherings  
IX. STATUTES, REGULATIONS, AND STANDARDS 6% (15 questions)
A. Knowledge of Source and Nature of Legal Authority  
B. Knowledge of Law Concerning Inspections (search warrants, right of entry, seizures, etc.)  
C. Knowledge of Lawfulness of Agency Administrative Actions  
D. Evaluate Compliance with Appropriate Federal Laws  
E. Knowledge of Standards (ISO, UL, NSF, etc.)  
X. HOUSING 6% (15 questions)
A. Conduct Investigations of Public and Private Housing  
B. Conduct Investigations of Mobile Home and Recreational Vehicle Parks  
XI. HAZARDOUS MATERIALS 2% (5 questions)
A. Conduct Investigations of Hazardous Materials  
XII. RADIATION PROTECTION 2% (5 questions)
A. Conduct Investigations of Radiation Hazards  
XIII. OCCUPATIONAL SAFETY AND HEALTH 2% (5 questions)
A. Conduct Investigations of Work Sites  
XIV. AIR QUALITY AND NOISE 2% (5 questions)
A. Assess Ambient Air Quality  
B. Survey Noise Control  
XV. DISASTER SANITATION AND EMERGENCY PLANNING 6% (15 questions)
A. Prepare in Advance for Disasters  
B. Assist with Management of Disaster Situations  
C. Assist with Post-Disaster Management  
   
TOTAL 100% (250 questions)

 

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