Assured shorthold tenancy agreement

[frank.sav]

Hello
I'm looking for a suitable translation for "Assured Shorthold Tenancy Agreement" in particular I'm interested in translating Shorthold.
I have no threads because it's the name of a type of Tenancy Agreement used in the UK.
I understood Shorthold as (for a) brief period (breve periodo)
I would like to be sure my guess is correct.

 

[Angel.Aura]

Ciao frank.sav,

In effetti è un contratto assicurato a breve termine/a breve scadenza (da 1 a 5 anni).
Riferimenti qui e qui.