All workers shall undergo the mandatory __________ hours safety and health orientation course as required by DOLE which shall be jointly participated by workers and employers. Standardized training module for safety and health personnel shall be implemented and updated regularly as necessary. The mandatory workers’ OSH seminar may be conducted by the safety officer of the establishment or any certified OSH practitioner or consultant.

To answer the question step by step, we need to understand the requirements for workers' safety and health orientation course as mandated by DOLE.

Step 1: All workers are required to undergo a mandatory number of hours for the safety and health orientation course. The specific number of hours may vary depending on the regulations set by DOLE.

Step 2: The safety and health orientation course should be jointly participated by both workers and employers. This means that both parties have to actively engage in the training to ensure a comprehensive understanding of safety and health protocols.

Step 3: A standardized training module for safety and health personnel should be implemented. This module serves as a guide for training sessions and ensures consistency in the information provided to workers and employers.

Step 4: The training module should be regularly updated as necessary. This is important to keep up with any changes in safety and health regulations or best practices.

Step 5: The mandatory workers' OSH seminar can be conducted by either the safety officer of the establishment or any certified OSH practitioner or consultant. This allows for flexibility in who can facilitate the training, as long as they have the necessary qualifications.

In summary, workers are required to undergo a mandatory safety and health orientation course, which should be jointly participated by workers and employers. A standardized training module should be implemented and regularly updated. The seminar can be conducted by the safety officer or a certified OSH practitioner or consultant.