On October 22, 1997 (62 FR 54900), EPA published a final Compliance Assurance Monitoring Rule (CAM). The final rule preamble described a Guidance Development Process in which the Agency would develop non-prescriptive examples of the types of monitoring that can be used to satisfy part 64 for various types of control devices and emissions units. In order to provide an opportunity for source owners or operators and other interested parties to submit suggestions, review drafts and generally clarify the part 64 requirements, a Draft CAM Technical Guidance Document is now available. The Agency emphasizes that the development of example monitoring approaches in this guidance document is intended to assist both regulated industry and permitting authorities to streamline permit review in those instances where a source owner or operator proposes monitoring based on one of the examples. These examples should not be considered as an implied limitation on the owner or operator's ability to propose a different approach that the owner or operator can demonstrate satisfies the part 64 requirements or on the permitting authority's authority to require additional monitoring. A final CAM Technical Guidance Document should be available by the end of March 1998.