Annex II of NR4 – Dimensioning of SESMT

Number of Workers in the Establishment
Risk Grade	Professionals	50 to 100	101 to 250	251 to 500	501 to 1,000	1,001 to 2,000	2,001 to 3,500	3,501 to 5,000	Above 5,000 For each group of 4,000 or fraction above 2,000**
1	Occupational Safety Technician				1	1	1	2	1
	Occupational Safety Engineer						1*	1	1*
	Occupational Nursing Assistant/Technician						1***	1	1
	Occupational Nurse							1*
	Occupational Physician					1*	1*	1	1*
2	Occupational Safety Technician				1	1	2	5	1
	Occupational Safety Engineer					1*	1	1	1
	Occupational Nursing Assistant/Technician					1***	1***	1	1
	Occupational Nurse							1
	Occupational Physician					1*	1	1	1
3	Occupational Safety Technician		1	2	3	4	6	8	3
	Occupational Safety Engineer				1*	1	1	2	1
	Occupational Nursing Assistant/Technician					1***	1	1	1
	Occupational Nurse						1	1
	Occupational Physician				1*	1	1	2	1
4	Occupational Safety Technician	1	2	3	4	5	8	10	3
	Occupational Safety Engineer		1*	1*	1	1	2	3	1
	Occupational Nursing Assistant/Technician				1***	1***	1	1	1
	Occupational Nurse					1	1
	Occupational Physician		1*	1*	1	1	2	3	1

(*) Part-time (minimum of three hours)
(**) The total dimensioning should be done considering the dimensioning of the 3,501 to 5,000 range, plus the dimensioning for the group(s) of 4,000 or fraction above 2,000.
(***) The employer may choose to hire an occupational nurse part-time, instead of an occupational nursing assistant/technician.

NOTES:
A) Hospitals, clinics, maternity homes, health centers, and similar establishments must hire an occupational nurse full-time if they have more than 500 workers.
B) Due to the nature of SESMT’s duties, supervision of the occupational nursing assistant/technician by an occupational nurse is not required, except when the activity is performed in hospitals, clinics, maternity homes, health centers, and similar establishments.