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Priority B (Medium Hazard) Micro-organisms

Priority B (medium hazard) micro-organism strains on the Domestic Substances List (DSL) were given a medium priority for assessment because while they are not specifically identified as pathogens; however, the Government of Canada identified evidence in the scientific literature of potential to cause harm to human health or the environment. More information about Prioritization of Micro-organisms Strains on the Domestic Substances List is available. Information on all Micro-organism assessments is also available.

Applying the Significant New Activity Provisions

Potential uses of concern for strains in Priority B 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 B Micro-organism Strains and Publications

Draft Screening Assessment
Species Strain/Accession Number Draft Screening Assessment Proposed conclusion on Section 64 criteria SNAc Application
Bacillus circulans ATCC 9500 HTML Does not meet Not applicable
Bacillus megaterium ATCC 14581 HTML Does not meet Not applicable
Chaetomium globosum ATCC 6205 HTML Does not meet Not applicable
Micrococcus luteus ATCC 4698 HTML Does not meet Not applicable
Trichoderma reesei ATCC 74252 HTML Does not meet Under consideration
Final Screening Assessment
Species Strain/Accession Number Final Screening Assessment Conclusion on Section 64 criteria SNAc Application
Bacillus amyloliquefaciens 13563-0 HTML Does not meet Not applicable
Bacillus atrophaeus 18250-7
Bacillus subtilis ATCC 6051A
Bacillus subtilis ATCC 55405
Bacillus subtilis subspecies subtilis ATCC 6051
Bacillus species 16970-5
Bacillus species 2 18118-1
Bacillus species 7 18129-3
Candida utilis ATCC 9950 HTML Does not meet Not applicable
Paenibacillus polymyxa ATCC 842 HTML Does not meet Not applicable
ATCC 55407
13540-4
Pseudomonas putida ATCC 12633 HTML Does not meet HTML
ATCC 31483
ATCC 31800
ATCC 700369
Pseudomonas sp. ATCC 13867 HTML Does not meet Not applicable
Saccharomyces cerevisiae F53 HTML Does not meet Not applicable
Timelines
Date Species Affected Activity
February 4, 2017 Trichoderma reesei ATCC 74252 Publication of the draft screening assessment in the Canada Gazette, Part I: Vol. 151, No. 5 – February 4, 2017 and start of 60-day public comment period.
January 21, 2017 Pseudomonas putida ATCC 12633, ATCC 31483, ATCC 31800, ATCC 700369 Publication of the SNAc Notice of intent and start of 60-day public comment period.
January 21, 2017 Saccharomyces cerevisiae F53 Publication of the final screening assessment in the Canada Gazette, Part I: Vol. 151, No. 3 - January 21, 2017.
January 21, 2017 Pseudomonas putida ATCC 12633, ATCC 31483, ATCC 31800, ATCC 700369 Publication of the final screening assessment in the Canada Gazette, Part I: Vol. 151, No. 3 - January 21, 2017.
January 21, 2017 Bacillus circulans ATCC 9500 Publication of the draft screening assessment in the Canada Gazette, Part I: Vol. 151, No. 3 - January 21, 2017 and start of 60-day public comment period.
January 21, 2017 Bacillus megaterium ATCC 14581 Publication of the draft screening assessment in the Canada Gazette, Part I: Vol. 151, No. 3 - January 21, 2017 and start of 60-day public comment period.
January 21, 2017 Chaetomium globosum ATCC 6205 Publication of the draft screening assessment in the Canada Gazette, Part I: Vol. 151, No. 3 - January 21, 2017 and start of 60-day public comment period.
January 21, 2017 Micrococcus luteus ATCC 4698 Publication of the draft screening assessment in the Canada Gazette, Part I: Vol. 151, No. 3 - January 21, 2017 and start of 60-day public comment period.
May 28, 2016 Candida utilis ATCC 9950 Publication of the final screening assessment in the Canada Gazette Part I: Vol. 150, No. 22 – Month 28, 2016.
May 28, 2016 Pseudomonas sp. ATCC 13867 Publication of the final screening assessment in the Canada Gazette Part I: Vol. 150, No. 22 – May 28, 2016.
April 9, 2016 Saccharomyces cerevisiae F53 Publication of the draft screening assessment in the Canada Gazette Part I: Vol. 150, No. 15 – April 9, 2016 and start of 60-day public comment period.
March 19, 2016 Pseudomonas putida ATCC 12633, ATCC 31483, ATCC 31800, ATCC 700369 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 Paenibacillus polymyxa ATCC 842, ATCC 55407, 13540-4 Publication of the final screening assessment in the Canada Gazette, Part I: Vol. 149, No. 31 - August 1, 2015.
August 1, 2015 Bacillus amyloliquefaciens 13563-0, Bacillus atrophaeus 18250-7, Bacillus subtilis ATCC 6051A, Bacillus subtilis ATCC 55405, Bacillus subtilis subspecies subtilis ATCC 6051, Bacillus species 16970-5, Bacillus species 2 18118-1, Bacillus species 7 18129-3 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 A micro-organisms included in the DSL Bacillus licheniformis/subtilis group.
May 23, 2015 Candida utilis ATCC 9950 Publication of the draft screening assessment in the Canada Gazette, Part I: Vol. 149, No. 21 - May 23, 2015 and start of 60-day public comment period.
May 23, 2015 Pseudomonas species ATCC 13867 Publication of the draft screening assessment in the Canada Gazette, Part I: Vol. 149, No. 21 - May 23, 2015 and start of 60-day public comment period.
January 17, 2015 Paenibacillus polymyxa ATCC 842, ATCC 55407, 13540-4 Publication of the draft screening assessment in the Canada Gazette, Part I: Vol. 149 No. 3 - January 17, 2015 and start of 60-day public comment period.
November 29, 2014 Bacillus amyloliquefaciens 13563-0, Bacillus atrophaeus 18250-7, Bacillus subtilis ATCC 6051A, Bacillus subtilis ATCC 55405, Bacillus subtilis subspecies subtilis ATCC 6051, Bacillus species 16970-5, Bacillus species 2 18118-1, Bacillus species 7 18129-3 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 A micro-organisms included in the DSL Bacillus licheniformis/subtilis group.