Tonnage tax ineligibility bars re-entry after opt-out, default, or abuse-based exclusion from the scheme. A qualifying company that opts out of the tonnage tax scheme, defaults on transferring profits to the tonnage tax reserve (section 115VT), fails the training requirement (section 115VU), breaches the character limit in tonnage (section 115VV), or is excluded under an order under section 115VZC(1) for abuse, is ineligible to opt into the tonnage tax scheme for ten years from the date of the opt-out, default, or exclusion order.