16.Subsection (1) defines an LDT as an agricultural tenancy (other than a 1991 Act tenancy) of at least 15 years duration. Any such lease of more than 5 years becomes an LDT, with a minimum length of 15 years - see subsection (4).
17.Subsection (2) converts SLDTs to LDTs where the tenant continues to occupy the land after expiry of the term of the let with the consent of the landlord. Consent may for these purposes be formal or implied (e.g. the landlord continues to accept rent from the tenant).
18.Subsection (3) works with section 4(5) of the 2003 Act, so that an SLDT purporting to be of a duration exceeding 5 years is deemed to be an LDT of 15 years.