6. Which of the following topics is not covered in the regulation? A Which floors childcare can be provided on. B Which requirement codes the fire detection systems must meet. C Where railings designed for children need to be. square How to file a post-fire insurance report.

The correct answer is D. How to file a post-fire insurance report.<br /><br />The regulation does not cover the topic of how to file a post-fire insurance report. The other options, A, B, and C, are topics that are typically covered in building regulations and codes. Option A refers to the specific floors where childcare can be provided, option B refers to the requirements that fire detection systems must meet, and option C refers to the placement of railings designed for children. These topics are generally addressed in building codes and regulations to ensure safety and compliance with standards.