[4] In 1992, as a result of the Options for Change, the division, along with the regiment, were disbanded, but later reformed in 1993.

[5][6] 15 Field Support Squadron of 21 Engineer Regiment were the first troops to use the Talisman suite of counter-IED tools operationally in Afghanistan, in 2010.

[7] In 25 October 2013, the British Army had 18 Honeywell RQ-16 T-Hawk UAVs in service as part of the Talisman C-IED suite.

[8] Under Army 2020, the regiment joined the 12 (Force Support) Engineer Group.

[5][6][9] As a result of the Better Defence Estate strategy, and Army 2020 Refine, the regiment will move to Marne Barracks, Catterick and gain a Mechanised Infantry Vehicle variant.