On 21 February 2024, ECHA’s Public Activities Coordination Tool (PACT) was updated with the following new intentions for Assessment of regulatory needs (ARN):

1. Pyrrolidine

2. Piperidinium chloride

3. Piperidine, 1-methyl-, hydrochloride (1:1)

4. Piperidine

5. Perhydroazepine

6. N-(cyclopent-1-ene-1-yl)pyrrolidine

7. 4-methylpiperidine

8. 4,4'-trimethylenedipiperidine

9. 3,5-dimethylpiperidine

10. 2,2,6,6-tetramethylpiperidine

11. 1-methylpyrrolidine

12. 1-methylpiperidine

13. 1-ethylpiperidine

14. (S)-2,2,4-trimethylpyrrolidine hydrochloride

In addition, the PACT was updated with the following finalised Hazard assessments:

1. Melamine

2. Benzotriazole

This update brought the number of PACT ARN and Hazard assessment substances to 4814.