Are You Ready for the 2021 Alberta CEMS Code Update?


The Alberta CEMS Code Goes into Effect January 1, 2022


Do you need a new action plan to meet the demands of the recent CEMS Code Update?

VIM Technologies, the leading air compliance software, and services provider is ready to help bring your organization current on the latest Alberta CEMS Code update.

5 Significant Changes in 2021 Alberta CEMS Code

Alberta Environment and Parks (AEP) published a second draft of the 1998 Continuous Emission Monitoring System (CEMS) Code and hosted a webinar to provide information concerning the proposed revisions to the CEMS Code on October 13, 2020. A brochure summarizing the significant revisions to the CEMS code is available here. The revised Alberta CEMS code was finalized on April 7, 2021 and will take effect for the majority of the revisions on January 1, 2022.

Adjustments to the existing code will significantly impact the five key areas listed below.

To learn more about the revised CEMS Code (2021), and for the most up-to-date content, view the full Continuous Emission Monitoring System Code [2021].

Code Revisions Impacting Data Acquisition Systems (DAS)

There were several critical changes made to the 2021 CEMS Code that affect the programming of every DAS used for compliance.  Some notable and obvious changes are how percent availability is calculated, new data substitution algorithms, or even the out-of-control criteria for analyzer drift. However, the revised CEMS Code includes other subtle changes that may affect programming such as the reporting of partial operating hours and temperature data, decimal precision to all performance specifications, and QA test deadlines.

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Major Component Replacement and Recertification

The Code specifies that all recertification tests or other performance tests required following major CEMS changes to be completed no later than 90 days.  During these events, the Code limits the use of the missing data estimation to 168 hours (1 week) per calendar month.

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Opacity Monitors

Any new opacity monitor must be installed and certified in accordance with Performance Specification 1 (PS-1) in Appendix B of 40 CFR Part 60. PS-1 requires that opacity monitor manufacturers meet the design and performance specifications detailed in ASTM D6216, Standards for Opacity Monitor Manufacturers to Certify Conformance With Design and Performance Specifications. Sources must obtain a certificate of conformance from the opacity monitor manufacturer certifying that the analyzer conforms to the requirements specified in ASTM-D626.

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Flowing Test Gas

For new analyzers, the analyzer must be capable of using flowing test gas to conduct CGAs.  The CGA is also referred to as a linearity check in several places throughout the Code.    The source may not perform corrective maintenance, repairs replacements or adjustments to the CEMS 24 hours prior to or during each CGA. The unit must be combusting the primary fuel normal for the unit or producing the primary product normal for the unit during each CGA. 

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Annual CEMS and QAP Evaluation

Annual evaluations should be scheduled as close as possible to twelve (12) months apart. Section 7.7 provides more detail, than previously listed in Section 5.3 of the 1998 Code, concerning the minimum components that must be covered in an annual audit. The annual audit report is not required to be submitted to the Director, although the Director may request a copy of the report. A summary of the audit findings must be included in the monthly or annual report specified in AMD Chapter 9.

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2021 Alberta CEMS Code Webinar – What You Need to Know

(Get Access to Recorded Webinar)

Watch our recent webinar to learn more about the changes found in the 2021 Alberta CEMS code as we dive into a few of the more significant changes and how they may impact your current compliance plan. We provide an overview of what air compliance consists of, discuss common architecture for data gathering and reporting along with best practices and innovative tools to help streamline compliance. A solid approach with the right plan and correct tools will reduce risk and help ensure compliance.

VIM Technologies Can Help

VIM Technologies, the leading air compliance software, and services provider is ready to help bring your organization current on the latest Alberta CEMS Code update.

VIM’s state-of-the-art DAS is fully equipped to comply with the new monitoring, recordkeeping requirements.  In addition, VIM’s COMPAS group has over 125 years of combined CEMS and regulatory experience that can help with your Monitoring Plan, QA/QC Plan, Reporting & Regulatory SupportCEM Program AuditsRegulatory Training, and DAHS Tune-ups.

The January 1, 2022, compliance deadline is quickly approaching, so now is the time to act. If the 2021 Alberta CEMS Code requirements impact your facility and you want to learn more, CONTACT US today to schedule a complimentary consultation.


VIM Technologies experts are standing by to prepare an action plan to help you and your organization be ready for the CEMS update.

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