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Addendum II: Terms and conditions for confined research field trials of corn (Zea mays L.)

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Any release of a plant with a novel trait into the environment in the absence of explicit authorization by the Director of the Field Crops and Inputs Division, CFIA, is a contravention of Part V of the Seeds Regulations. Failure to comply with conditions of an authorized release is a contravention of Part V of the Seeds Regulations.


1. The applicant must ensure that all trial seed and plant material, including seed and plant material to be planted, excess from transplantation and harvested seed and plant material, are transported in clearly identified, secure containers and are kept separate from other seed and plant material. These requirements also apply to all non-modified plant material on the trial site.

Reproductive isolation

2. Corn plants in the trial must be reproductively isolated from other corn plants by removal of tassels prior to pollen shed, or by a minimum isolation distance of 200 metres. In the event that some tassels are allowed to shed pollen, all corn plants within a 200 metre isolation distance of the confined research field trial site must be destroyed before seed set.

3. The trial site and a minimum 10 metre zone (50 metres if a commercial-scale combine was used during harvest) around the trial site, must not be seeded to corn for 1 year following harvest of the trial. All volunteers must be removed from the trial site before flowering when found during the post-trial growing season (Please see section "Information to be Provided to the PBO (Plant Biosafety Office)").

Cleaning of equipment

4. Seeding, transplanting, site maintenance and harvesting machinery and equipment must be cleaned of all residual plant material at the trial site prior to being moved to other locations to prevent dispersal of material from the trial.

Trial boundary marking

5. The use of markers is strongly recommended. Markers should be placed at all corners of the trial site to identify the confined field trial boundaries. The markers (for example, flags, corner posts, etc.) should be obvious, identifiable above the maximum height of the surrounding crop and in place for the growing seasons of both the trial and the post-harvest restriction period.

6. Distance measurements from visible and accessible permanent surrounding landmarks must be provided for precise location of the site. Global Positioning System (GPS) coordinates must be taken precisely at all corners of each trial site. The GPS coordinates of each confined research field trial site location must be submitted to the PBO within 7 days after planting.

Harvesting and seed set

7. Plants must be harvested before full maturity to minimize shattering and seed dispersal. If seed set occurs, all seed and other propagable plant material from the confined research field trial, including non-modified control material, must be harvested unless otherwise approved by the PBO (Please see section "Information to be Provided to the PBO").


8. Surplus seed or seedlings, any plant material remaining after planting or transplantation that is to be destroyed, and all propagable plant material harvested from the confined research field trial that is not to be retained, must be disposed of by crushing, burning, autoclaving or burial at a depth of 1 metre. When crushing is used to dispose of the seed, the crushed seed must be soil incorporated within 48 hours after harvest and the mechanical rollers must be thoroughly cleaned at the trial site. Regardless of destruction method, all seed must be devitalized. Composting of this material is not an acceptable destruction method. These requirements also apply to all non-modified plant material on the trial site.

9. All non-propagable plant material remaining on the trial site must be either soil-incorporated or destroyed as soon as possible after harvest, in a manner whereby the material is not easily distributed by wind or local fauna, yet does not promote seed dormancy. If the applicant decides to burn the plant material, material must be burned to ash.

10. If a trial is terminated prior to harvest, all plant material must be disposed of as described earlier in this section.


11. All seed and plant material, including excess from planting and harvested seed and plant material, that is retained, must be stored appropriately in clearly labelled and secure containers and kept separate from other seed and plant material. These requirements also apply to non-modified seed and plant material harvested from trial sites. A secure container must be designed to minimize the potential for a spill or dissemination. In the event of any accidental spill or dissemination of material, the PBO must be immediately notified. Each container must be labelled "PNT material – Do not mix".


12. During the trial growing season the isolation distance must be monitored weekly to ensure that all corn plants are removed before seed set.

13. During the post-trial growing season the trial site and the 10 metre zone around the trial site (50 metres if a commercial-scale combine was used during harvest), is subject to monitoring (Please see section "Reproductive Isolation"). Site monitoring must occur at least once every 2 weeks to ensure that all volunteer plants are removed before flowering.

Accidental release

14. In the case of accidental release of propagable material in the environment, recoverable seeds or seedlings must be collected and destroyed, the site must be marked and monitored, and the PBO notified immediately. Plants from unrecoverable seed must be immediately destroyed (this can include mechanical or chemical means).


15. A detailed trial log book must be kept. Records of the confined research field trial, including current season and post-harvest site monitoring, activities related to the trial site compliance, cleaning of machinery, transportation, disposition and storage of all surplus seed and harvested seed and plant material, must be maintained by the applicant and made available to the CFIA upon request. A report summarizing the completed trial and experimental data, including any amendments to the original protocol, must also be made available to the CFIA upon request. Detailed records requirements are found in section 3.7 of Directive 2000-07.

Information to be provided to the PBO (Plant Biosafety Office)

16. a) Applicants must provide the following information to the PBO in writing within 15 working days after harvest:

b) If a trial is destroyed prior to harvest, applicants must provide information on the trial's growth stage at the time of destruction, as well as the date and method of destruction, to the PBO in writing within 15 working days.

17. Applicants must notify the PBO in writing of the crop species planted on field trial sites for each year the sites are subject to post-harvest land use restrictions. This notification must be received every year by June 1.


18. It is not permitted to allow livestock access to sites under post-harvest restrictions.

19. No plant material from these trials may enter the human food or livestock feed chain unless approved by Health Canada or the Animal Feed Division, CFIA, respectively.

20. If a chemical treatment is used on the trial site that requires a temporary prohibition on entry into the site, a sign must be posted at the access to the trial indicating the date and time of spraying as well as the time until safe entry. This condition is intended to protect the health and safety of the CFIA inspection staff.

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