The main target of this plant is rulemaking of continuous emission monitoring system regulation (CEMS regulation) for Taiwan Environmental Protection Administration (Taiwan EPA). The most important modification of CEMS regulation include: (1)Adding two air pollutants (HCl and VOC) should be monitored and relevant performance specification. (2)Requiring the CEMS availability should be equal to or greater than 75% and 85% in two phases, respectively. (3)Modifying the specification of RATA for low concentration emission sources. (4)Applying the system bias to prevent systematic error in CEMS. (5)Adding the punishment and penalty. To improve the feasibility of CEMS regulation, we review the CEMS regulations adopted by USEPA, ISO, UK Mcerts and Germany UBA. And seven workshops and one public hearings were held. Beside the CEMS regulation, we also prepare the CEMS documents verifying criteria and standard operation procedures (SOPs), field audit manuals and monitoring data checking manuals for the auditors of EPA and Environmental Protection Bureaus (EPB). We carried out the Cylindrical Gases Audit (CGA) and filed audits for 54 stacks installed CEMS in this plan. The problems we found in the audits have been reply to the owners and operators of CEMS. A part of problems have been improved by the owners and operators of sources. The quality of CEMS data have been analyzed to determined their representativeness and reality for five categories and 10 cases. The emission coefficients (EC) based on CEMS data were also developed by six categories and twenty-seven cases by the meantime. The discrepancy of EC between this report and other published were analyzed. We also develop one new version of CEMS monitoring data submitting module to improve the performance and stability of software. The new CEMS monitoring submitting module have been setup and worked well in Taipei county EPB and Chiayi county EPB. This program and its manual will be published in the near future.

CEMS,Audit,Bias,Availibility,Emission Coefficient