[Code of Federal Regulations]

[Title 30, Volume 1]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 30CFR33.9]



[Page 165]

 

                       TITLE 30--MINERAL RESOURCES

 

  CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR

 

PART 33_DUST COLLECTORS FOR USE IN CONNECTION WITH ROCK DRILLING IN COAL 

MINES--Table of Contents

 

                      Subpart A_General Provisions

 

Sec.  33.9  Certification of dust-collecting systems.



    Manufacturers of dust-collecting systems that are designed for 

integral use on machines with drilling equipment may apply to MSHA to 

issue a certificate of performance for such systems. To qualify for a 

certificate of performance, the dust-collecting system shall have met 

satisfactorily the test requirements of Subpart C under specified 

operating conditions, such as type of drilling equipment, drilling 

speed, and power requirements and the construction thereof shall be 

adequately covered by specifications and drawings officially recorded 

and filed with MSHA. Individual parts of dust-collecting systems will 

not be certified for performance. Certificates of performance may be 

cited to fabricators of combination units as evidence that further 

inspection and testing of the dust-collecting system will not be 

required, provided the dust-collecting requirements of the drilling 

equipment do not exceed the limits of performance for which the system 

was certified. Since MSHA does not sanction the use of the words 

``permissible'' or ``approved'' except as applying to completely 

assembled equipment, dust-collecting systems, which have been certified 

only as to performance, shall not be advertised or labeled in a manner 

inferring that such systems themselves are permissible or approved by 

MSHA. However, a certified system may be advertised as suitable for use 

on combination units for which certification may be desired if the 

limits of its performance are cited. Certified dust-collecting systems 

shall bear labels or tags which shall contain the following: 

``Performance-tested Dust Collecting, System, MSHA File No. P/T--------

,'' and name of manufacturer, identifying numbers of the dust-collector 

parts, and description of the limitations for which performance is 

certified. MSHA will assign a P/T file number in the certification 

letter.