33 CFR §183.335
When the conditions prescribed in § 183.320 (a) and (d) through (g) are met, the boat must float in fresh, calm water as follows:
- (a)The angle of heel does not exceed 10 degrees from the horizontal.
- (b)Any point on either the forward or aft reference area is above the surface of the water.
- (c)The reference depth at the reference area that is opposite the reference area that is above the surface of the water is 6 inches or less.