* Exposure measurements

* Results of referral for specialized medical evaluations

Each record in the registry is identified by a unique identifier, which serves to link the record to a specific individual while maintaining confidentiality. The pairing of unique identifiers with specific workers is known only to the LLNL Medical Director and individuals designated by him or her as having a need to know such information.

In addition, see Appendix B for LLNL's medical protection requirements for current and prospective beryllium workers.

3.6 Personal Protective Equipment

The hazard assessment (see Section 3.5.3) shall determine and document the necessary PPE. The use of personal protective equipment protection is required when worker exposure equals or exceeds, or potentially equals or exceeds, the AL.

PPE shall be provided to any beryllium-associated worker, regardless of the level of exposure, whenever he or she requests it. Beryllium-contaminated PPE shall be handled in accordance with Document 11.1. Containers of contaminated PPE shall be labeled in accordance with Section 3.5.8 (Figure 3).

3.6.1 Respiratory Protection

For beryllium work that involves unknown exposures and that has a potential for airborne exposure, respiratory protection shall be used until at least one of the following conditions is satisfied:

* Personal samples have been taken, and exposures for worst case conditions are known to be less than the AL.

* The work has been evaluated and compared to other, similar work in which exposures are known to be less than the AL.

* The work has been evaluated, compared to other, related work (in which exposures are known to be less than the AL), and determined to have less exposure potential.

All workers requiring or wanting to use respiratory protection shall follow the requirements of Document 11.1. Respiratory protection shall be chosen by the ES

Table 4. Required respiratory protection.

Exposurea