Which statement about using RGBM tables for a dive is correct?

Which statement about using RGBM tables for a dive is correct?

• A. You should always use multiple tables for a single dive
• B. You should not worry about the appropriate table
• C. You must be aware of and use the appropriate single RGBM table
• D. You can use the table as a decorative chart

Answer: (C)

Using RGBM tables correctly comes down to selecting the right table for your specific gas mix and dive plan and sticking with it. Each RGBM table is built for a particular breathing gas (like air or a specific nitrox blend) and for defined depth and bottom-time scenarios. They provide no-decompression limits or decompression requirements based on that gas and profile. Because of that, you must use the single table that matches your gas and planned depth—not mix multiple tables or substitute another. Using a different table or treating the chart as decorative ignores the careful limits the model provides and can lead to unsafe planning. So, the best practice is to be aware of and use the appropriate single RGBM table for your dive.

Using RGBM tables correctly comes down to selecting the right table for your specific gas mix and dive plan and sticking with it. Each RGBM table is built for a particular breathing gas (like air or a specific nitrox blend) and for defined depth and bottom-time scenarios. They provide no-decompression limits or decompression requirements based on that gas and profile. Because of that, you must use the single table that matches your gas and planned depth—not mix multiple tables or substitute another. Using a different table or treating the chart as decorative ignores the careful limits the model provides and can lead to unsafe planning. So, the best practice is to be aware of and use the appropriate single RGBM table for your dive.