[Code of Federal Regulations]
[Title 30, Volume 1]
[Revised as of July 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 30CFR71.203]

[Page 431]
 
                       TITLE 30--MINERAL RESOURCES
 
  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
 
PART 71--MANDATORY HEALTH STANDARDS--SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES--Table of Contents
 
                     Subpart C--Sampling Procedures
 
Sec. 71.203  Certified person; maintenance and calibration.

    (a) Approved sampling devices shall be maintained and calibrated by 
a certified person.
    (b) To be certified, a person shall pass the MSHA examination on 
maintenance and calibration procedures for respirable dust sampling 
equipment.
    (c) A person may be temporarily certified by MSHA to maintain and 
calibrate approved sampling devices if the person receives instruction 
from an authorized representative of the Secretary in the maintenance 
and calibration procedures for respirable dust sampling equipment under 
this rule. The temporary certification shall be withdrawn if the person 
does not successfully complete the exmamination conducted by MSHA on 
maintenance and calibration procedures within six months from the issue 
date of the temporary certification.