# Presentation: 666105

## Final Rule May 18, 2006

**Final Rule ****May 18, 2006**

**DIESEL PARTICULATE MATTER EXPOSURE OF U/G MNM MINERS**

## Diesel Particulate Matter Exposure Of U/G MNM Miners

**Overview of May 18, 2006 rule**
**DPM requirements in effect**
**DPM requirements not in effect**
**Other key DPM requirements**
**TC vs. EC **

## DPM Carbon Components

**Elemental Carbon**
**Cores (EC)**

**Vapor Phase**
**Hydrocarbons (OC)**

**DPM Carbon Components**

## DPM Carbon Components

**Elemental Carbon**
**Cores (EC)**

**Vapor Phase**
**Hydrocarbons (OC)**

**DPM Carbon Components**

## OC + EC = TC

**Hydrocarbons**
**Adsorbed Onto**
**Elemental Carbon**
**Cores (OC + EC)**

***OC + EC = TC***
***2001 Rule:  Interim Limit = 400******TC****** μg/m******3***
***            ******Final Limit 160******TC****** μg/m******3***

**DPM Carbon Components**

## DPM Carbon Components

**Elemental Carbon**
**Cores (EC)**

**Vapor Phase**
**Hydrocarbons (OC)**

**DPM Carbon Components**

**EC=77%**

**OC=23%**

**77% x 1.3 = 100%**
**EC x 1.3 = TC**
**308****EC**** X 1.3 = 400****TC**

## May 18, 2006 Final Rule

**Phases in final DPM PELs over two**** years**
**308****EC**** ****μg/m****3**** -  effective May 20, 2006 **
**350****TC**** ****μg/m****3**** -  effective January 20, 2007 **
**160****TC**** ****μg/m****3**** -  effective May 20, 2008**
**1****st**** step, 308****EC**** ****μg/m****3****, is an EC limit**
**2****nd**** & 3****rd**** steps are TC limits**
**Will use 1.3 conversion factor for 350****TC**** ****μg/m****3**** limit as we did under the Settlement Agreement and use EC to validate**
**MSHA will initiate separate rulemaking to convert  160 TC limits to comparable EC limits**

## May 18, 2006 Final Rule

**Deletes provision restricting newer mines from applying for Special Extension**
**Effective August 16, 2006 - Medical evaluation to determine miner's ability to wear a respirator and transfer of miners unable to wear a respirator**

## Respiratory Protection(New Provisions)

**Applicable when respiratory protection is required **
**Confidential medical evaluation required to determine miner’s ability to use a respirator**
**Must conduct before fit testing or use at mine**
**No cost to miner**
**Evaluation must be by physician or other licensed health care professional (PLHCP)**
**If PLHCP determines miner is unable to wear negative pressure respirator, PLHCP must also evaluate miner’s ability to wear powered air purifying respirator (PAPR)**

## Respiratory Protection(New Provisions)

**Mine operator must insure miner has opportunity to discuss their evaluation results with the PLHCP **_***before***_** the PLHCP submits written determination on miner’s ability to wear respirator to the mine operator**** **
**If miner disagrees with PLHCP’s evaluation results, the miner has 30 days to submit additional evidence regarding their medical condition to the PLHCP**

## Respiratory Protection(New Provisions)

**Mine operator must obtain written determination from PLHCP regarding miner’s ability to wear respirator**** **
**Mine operator must assure that PLHCP provides copy of determination to miner**** **
**Reevaluation required whenever mine operator has reason to believe conditions have changed which could adversely affect miner’s ability to wear respirator**

## Respiratory Protection(New Provisions)

**Upon written notification that PLHCP has determined that miner is unable to wear respirator, miner must be transferred to work in existing position in area of same mine where respirator is not required**** **
**Transfer must be within 30 days of final determination by PLHCP**

## Respiratory Protection(New Provisions)

**Miner must continue to receive compensation at no less than regular rate of pay in the classification held by the miner immediately prior to transfer**** **
**Increases in wages of the transferred miner based on new work classification**** **
**Mine operator must maintain records of identity of PLHCP and the most recent determination of each miner’s ability to wear respirator.  Records must be kept for duration of miner’s employment + 6 months**

## DPM Provisions In Effect

**  ****§****57.5060 (b)****	****Final limit **
**1****st**** phase, May 20, 2006, 308****EC ****ug/m****3**
**2nd phase, January 20, 2007, 350****TC**** μg/m****3**
**3rd phase, May 20, 2008, 160****TC**** μg/m****3**** **
**  ****§****57.5060 (c)****	****Special extensions**
**  ****§****57.5060 (d)****	****Controls and respiratory protection**
**  ****§****57.5060 (e)****	****Rotation of miners**
**  ****§****57.5061****	****	****Compliance determinations**
**  ****§****57.5065****	****	****Fueling practices**
**  ****§****57.5066****	****	****Maintenance standards**
**  ****§****57.5067****	****	****Engines**
**  ****§****57.5070****	****	****Miner training**
**  ****§****57.5071****	****	****Exposure monitoring**
**  ****§****57.5075****	****	****Diesel particulate records**

## DPM Provisions Not In Effect

**DPM Provisions Not In Effect**

**August 16, 2006 – Medical evaluation of respirator wearers and transfer of miners unable to wear a respirator**** **
**Rulemaking to convert TC final limits to comparable EC limits**

##  Thank You

- <date/time>

** ****Thank You**