Bibliographic record
Abstract
Canada’s New Substances Notification Regulations Under the New Substances Program, Health Canada (HC) and Environment and Climate Change Canada (ECCC) administer the New Substances Notification Regulations (Chemicals and Polymers) and New Substances Notification Regulations (Organisms) (NSNR) of the Canadian Environmental Protection Act, 1999 (CEPA) to examine the potential risks to Canadians and their environment before the substances enter the Canadian marketplace. These regulations are an integral part of the Canadian government’s national pollution prevention strategy. Under this joint endeavour between HC and ECCC, the New Substances program has completed over 20,000 New Substances Notification risk assessments. The following poster presentation outlines the NSNR and the substances subject to them. An overview of the regulations is provided including the definition of a new substance, the notification process, risk assessment and potential risk management measures, and how to find additional information and resources.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.009 | 0.021 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.005 | 0.006 |
| Science and technology studies | 0.008 | 0.002 |
| Scholarly communication | 0.007 | 0.002 |
| Open science | 0.006 | 0.002 |
| Research integrity | 0.004 | 0.004 |
| Insufficient payload (model declined to judge) | 0.062 | 0.016 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".