19.Subsection (1) prevents the tenant of land subject to an SLDT from either assigning the lease or sub-letting the land. However, as subsection (2) provides, landlord and tenant can agree to terminate an SLDT prematurely. Sections 7 and 8 set out the corresponding provisions to apply to LDTs, the effects of which are quite different. The 2003 Act does not require a notice to quit procedure for SLDTs.