According to ISO 45001:2018, the PDCA cycle is explained in Clause 0.4. The Act phase is defined as:
taking actions to improve continually the OH and S performance in order to achieve the intended outcomes . This clearly supports C. Making improvements as a correct answer.
Option D. Resetting objectives is also appropriate because ISO 45001 requires OH and S objectives to be reviewed and updated as appropriate . After checking performance results, the organization may revise or reset objectives as part of continual improvement and corrective action. This aligns with the Act stage, where changes are made to improve system effectiveness and performance.
The remaining options belong to other PDCA phases:
* A. Verifying training relates more to evaluation of competence and effectiveness, which fits checking activities.
* B. Measuring objectives belongs to the Check phase because ISO 45001 says Check includes monitoring and measurement against OH and S policy and objectives.
* E. Providing infrastructure belongs to the Do phase because it is part of providing resources and operational support.
* F. Auditing processes belongs to the Check phase because internal audits are part of performance evaluation under Clause 9.2.
Therefore, the correct answer is:
C, D