Priority A (higher hazard) micro-organisms on the Domestic Substances List

Priority A (higher hazard) micro-organism strains on the Domestic Substances List (DSL) were given a high priority for assessment because the Government of Canada considered them human, plant or animal pathogens (in the case of microbial consortia) or because their hazard level is uncertain. More information about Prioritization of Micro-organism Strains on the Domestic Substances List is available. Information on all micro-organism assessments is also available.

Applying Significant New Activity Provisions

Potential uses of concern for strains in Priority A will be addressed through the application of Significant New Activity (SNAc) provisions. View the Comprehensive Listing of Substances that are Subject to the Significant New Activity Provisions. For additional guidance on submitting information required as part of SNAc notifications, please see the Guidelines for the Notification and Testing of New Substances: Organisms.

Summary of Priority A Micro-organism Strains and Publications

Draft Screening Assessment
Species Strain/Accession Number Draft Screening Assessment Proposed conclusion on Section 64 criteria SNAc Application
Aspergillus awamori ATCC 22342 HTML Does not meet Under consideration
Aspergillus brasiliensis ATCC 9642
Bacillus cereus ATCC 14579 HTML Does not meet HTML
Enterobacter aerogenes ATCC 13048 HTML Does not meet Under consideration
Final Screening Assessment
Species Strain/Accession Number Final Screening Assessment Conclusion on Section 64 criteria SNAc Application
Aspergillus oryzae ATCC 11866 HTML Does not meet HTML
Bacillus licheniformis ATCC 12713 HTML Does not meet Not applicable
Bacillus species 4 18121-4
Bacillus subtilis subspecies inaquosorum ATCC 55406
Escherichia hermannii ATCC 700368 HTML Does not meet Not applicable
Pseudomonas aeruginosa ATCC 31480
ATCC 700370
ATCC 700371
HTML Does not meet HTML
Pseudomonas fluorescens ATCC 13525 HTML Does not meet HTML
Pseudomonas stutzeri ATCC 17587 HTML Does not meet Not applicable
Timelines
Date Species Affected Activity
January 21, 2017 Aspergillus oryzae ATCC 11866 Publication of the SNAc Notice of intent and start of 60-day public comment period.
January 21, 2017 Aspergillus oryzae ATCC 11866 Publication of the final screening assessment in the Canada Gazette, Part I: Vol. 151, No. 3 - January 21, 2017.
July 13, 2016 Pseudomonas fluorescens ATCC 13525 Publication of the SNAc Order.
March 19, 2016 Aspergillus oryzae ATCC 11866 Publication of the draft screening assessment in the Canada Gazette Part I: Vol. 150, No. 12 - March 19, 2016 and start of 60-day public comment period.
August 1, 2015 Bacillus licheniformis ATCC 12713, Bacillus species 4 18121-4, and Bacillus subtilis subspecies inaquosorum ATCC 55406 Publication of the final screening assessment in the Canada Gazette, Part I: Vol. 149, No. 31 - August 1, 2015. This final screening assessment also applies to some Priority B micro-organisms included in the DSL Bacillus licheniformis/subtilis group.
August 1, 2015 Escherichia hermannii ATCC 700368 Publication of the final screening assessment in the Canada Gazette, Part I: Vol. 149, No. 31 - August 1, 2015.
February 14, 2015 Pseudomonas fluorescens ATCC 13525 Publication of the SNAc Notice of intent and start of 60-day public comment period.
February 14, 2015 Pseudomonas fluorescens ATCC 13525 Publication of the final screening assessment in the Canada Gazette, Part I: Vol. 149, No. 7 - February 14, 2015.
January 17, 2015 Pseudomonas stutzeri ATCC 17584 Publication of the final screening assessment in the Canada Gazette Part I: Vol. 149, No. 3 - January 17, 2015.
November 29, 2014 Bacillus licheniformis ATCC 12713, Bacillus species 4 18121-4, and Bacillus subtilis subspecies inaquosorum ATCC 55406 Publication of the draft screening assessment in the Canada Gazette Part I: Vol. 148, No. 48 - November 29, 2014 and start of 60-day public comment period. This draft screening assessment also applies to some Priority B micro-organisms included in the DSL Bacillus licheniformis/subtilis group.
November 29, 2014 Escherichia hermannii ATCC 700368 Publication of the draft screening assessment in the Canada Gazette Part I: Vol. 148, No. 48 - November 29, 2014 and start of 60-day public comment period.
July 19, 2014 Pseudomonas stutzeri ATCC 17587 Publication of the draft screening assessment in the Canada Gazette, Part I: Vol. 148, No. 29 - July 19, 2014 and start of 60-day public comment period.
June 14, 2014 Aspergillus awamori ATCC 22342 (=A. niger ATCC 22342) and Aspergillus brasiliensis ATCC 9642 Publication of the draft screening assessment in the Canada Gazette, Part I: Vol. 148, No. 24 - June 14, 2014 and start of 60-day public comment period.
June 14, 2014 Enterobacter aerogenes ATCC 13048 Publication of the draft screening assessment in the Canada Gazette, Part I: Vol. 148, No. 24 - June 14, 2014 and start of 60-day public comment period.
December 7, 2013 Pseudomonas fluorescens ATCC 13525 Publication of the draft screening assessment in the Canada Gazette, Part I: Vol. 147, No. 49 - December 7, 2013 and start of 60-day public comment period.
July 13, 2013 Bacillus cereus ATCC 14579 Publication of the SNAc Notice of intent and start of 60-day public comment period.
July 13, 2013 Bacillus cereus ATCC 14579 Publication of the draft screening assessment in the Canada Gazette, Part I: Vol. 147, No. 29 - July 13, 2013 and start of 60-day public comment period.
June 20, 2012 Pseudomonas aeruginosa (strains ATCC 31480, ATCC 700370 and ATCC 700371) Publication of the SNAc Order.
June 9, 2012 Pseudomonas aeruginosa (strains ATCC 31480, ATCC 700370 and ATCC 700371) Publication of the final screening assessment in the Canada Gazette, Part I: Vol. 146, No. 23 - June 9, 2012.
July 2, 2011 Pseudomonas aeruginosa (strains ATCC 31480, ATCC 700370 and ATCC 700371) Publication of the SNAc Notice of intent and start of 60-day public comment period.
July 2, 2011 Pseudomonas aeruginosa (strains ATCC 31480, ATCC 700370 and ATCC 700371) Publication of the draft screening assessment in the Canada Gazette, Part I: Vol. 145, No. 27 - July 2, 2011 and start of 60-day public comment period.
Report a problem or mistake on this page
Please select all that apply:

Privacy statement

Thank you for your help!

You will not receive a reply. For enquiries, contact us.

Date modified: