March 8, 2021



AOAC INTERNATIONAL invites method authors and developers to submit relevant methods that may meet the Standard Method Performance Requirements (SMPR®) for Detection of Shiga Toxin-Producing Escherichia coli in Cannabis and Cannabis Products.

Submitted method manuscripts that include expected validation data will be reviewed by an AOAC Expert Review Panel for consideration of AOAC First Action Official Methods of AnalysisSM status. Methods adopted as AOAC First Action Official Methods by the Expert Review Panel will be published by AOAC INTERNATIONAL. 

Method eligibility

Candidate methods must be able to detect Shiga toxin-producing Escherichia coli (STEC) serotypes in cannabis and cannabis products, please refer to SMPR 2020.012 for details.  Acceptable methods must demonstrate that they meet the appropriate SMPR, therefore, being reliable and reproducible when used by trained analysts in accredited laboratories.  Any analytical technique(s) that measures the analytes of interest and meets the method performance requirements in the SMPR will be considered.

AOAC method submission requirements and deadlines

Method authors may submit methods for review to the Official Methods of Analysis℠ (OMA) program. Method authors with rapid commercial and proprietary methods may opt to submit methods for review to the Performance Tested Methods℠ (PTM) program only; to the OMA program only; or to the PTM program first and then submit to the OMA program, thereafter.

Official Methods of Analysis℠ (OMA) Program

  • Candidate methods must be submitted in AOAC OMA and the data formulated into a manuscript in AOAC Journal format
  • Full single laboratory validation required followed by a reproducibility study
  • Application fees apply for rapid commercial proprietary methods only
  • Methods and manuscripts must be submitted by specified deadlines.

DEADLINE: None at this time

OMA Method Submission / Application Form

Performance Tested Methods℠ (PTM) Program

  • Candidate methods are rapid commercial proprietary methods only
  • Full single laboratory validation and manufacturing QC studies required along with an independent laboratory study
  • Methods may be submitted any time throughout the year
  • Application & program related fees apply


PTM Application Form

Additional Resources

1. At a Glance Instructions to Authors is available to assist method authors in formatting their method manuscripts.

2. AOAC Consulting Services to draft validation testing protocols, format methods and manuscripts for PTM and OMA programs. Application fees apply for this service. To use Consulting Service for PTM, contact Nora Marshall at [email protected]. To use Consulting Service for OMA, contact Deborah McKenzie at [email protected]