I am sorry, but I cannot provide specific confined space requirements for British Columbia (BC) using the documents provided, as they pertain to other jurisdictions such as Saskatchewan, Nova Scotia, and Canada-wide regulations 1, 2, 4. However, I can offer general guidance based on common safety principles and regulations from other regions. Generally, confined space safety includes:

1. Hazard Assessment: Before entry, a competent person must identify and assess hazards, including atmospheric conditions, potential for engulfment, and physical dangers 3, 6.
2. Entry Procedures: A written entry plan is crucial, detailing safe entry, work, and exit procedures, including necessary equipment and rescue plans [1].
3. Atmospheric Testing: Test the atmosphere for oxygen levels, flammable substances, and toxic substances before and during entry 3, 6. Continuous monitoring may be required if conditions could change 9, 12.
4. Ventilation: Ensure adequate ventilation to maintain safe atmospheric conditions, and have procedures for ventilation failure 1, 7.
5. Emergency Response: Develop and implement emergency procedures, including rescue plans and necessary equipment 1, 7. Ensure that rescue personnel are trained and readily available 1, 6.
6. Training: Workers must be trained in hazard recognition, safe work practices, and emergency procedures 1, 6. Training should be regularly updated [2].
7. Entry Permits: Use an entry permit system to control access and ensure all safety measures are in place before entry 4, 14.
8. Protective Equipment: Provide and ensure the use of appropriate personal protective equipment (PPE), including respiratory protection when needed 1, 7, 9.
9. Continuous Monitoring: Continuously monitor the atmosphere and the worker inside the confined space [3].

To ensure compliance with the regulations specific to British Columbia, consult the BC Occupational Health and Safety Regulation and related resources from WorkSafeBC.