Exam Description / Content Areas

The REHS/RS examination consists of a total of 225 multiple-choice questions. The exam is split into two parts. Part 1 will have 113 questions and Part 2 will have 112 questions. Candidates are given a total of three (3) hours and forty (40) minutes to complete the entire exam or one (1) hour and fifty (50) minutes for each part with a short 10-minute break in between. Of the 225 items, 200 will be scored. The remaining 25 questions will be unscored, pilot questions. Those items will not be called out within the exam. 

Below is an outline of the different content areas the examination covers and the percentages allotted to each of those areas. Please use this outline as a guide when preparing for the examination.

Duties and Tasks

Exam

Weight

N of Items

A

Performing Environmental Health Surveillance

12%

24

1

Plan surveillance activities

 

8

2

Collect surveillance data

 

4

3

Analyze data

 

4

4

Implement actions

 

8

B

Conducting Inspections

48%

96

1

Review regulations and standards

 

11

2

Prioritize inspections

 

4

3

Maintain inspection equipment

 

2

4

Perform food inspections

 

16

5

Perform wastewater inspections (i.e., onsite,

 

11

6

Perform potable water quality inspections

 

11

7

Perform recreational water inspections

 

9

8

Perform solid, hazardous, and infectious waste

facility inspections

 

11

9

Perform body art inspections

 

2

10

Perform group gathering inspections

 

3

11

Perform healthy homes inspections

 

4

12

Perform institution inspections

 

10

13

Perform other inspections

 

2

C

Conducting Investigations

18%

36

1

Perform epidemiology investigations

 

12

2

Perform lead investigations

 

3

3

Perform environmental health investigations

 

5

4

Verify risk abatement

 

6

5

Perform vector and pest investigations

 

10

D

Conducting Compliance Review

12%

24

1

Conduct plan review

 

8

2

Review HACCP plans

 

6

3

Evaluate variance requests

 

2

4

Determine permitting status

 

3

5

Verify compliance with regulations

 

5

E

Providing Environmental Health Information

10%

20

1

Communicate findings and corrective actions

 

4

2

Perform technical assistance

 

2

3

Collaborate with stakeholders (e.g., Community

 

2

4

Communicate environmental health risks

 

6

5

Create environmental public health emergency

response preparedness plans

 

2

6

Implement environmental public health

emergency response preparedness plans

 

4

Total

100%

200