Editing British Rail Classes 445 and 446 (section)

==Formations==
The unit formations in passenger and departmental service were:

{| class="wikitable"
!Unit No.
!Class
!Unit Type
!DMSO
!MSO (*PTSO)
!MSO
!DMSO
|-
|colspan=7 align=center|'''Formations in Passenger Use'''
|-
|align=center|2001
|align=center|446
|align=center|2PEP
|align=center|64300
|align=center|-
|align=center|-
|align=center|64305
|-
|align=center|4001
|align=center|445
|align=center|4PEP
|align=center|64301
|align=center|62427
|align=center|62428
|align=center|64302
|-
|align=center|4002
|align=center|445
|align=center|4PEP
|align=center|64303
|align=center|62426
|align=center|62429
|align=center|64304
|-
|colspan=7 align=center|'''Formations in Departmental Use'''
|-
|align=center|920001<ref name=Marsden1984-114>{{harvnb|Marsden|1984|p=114}}</ref>
|align=center|920
|align=center|3PEP
|align=center|ADB975430
<small>(ex. 64300)</small>
|align=center|ADB975431<br><small>New-build trailer</small>
|align=center|-
|align=center|ADB975432
<small>(ex. 64301)</small>
|-
|align=center|(935) 056<ref name=Marsden1984-114 />
|align=center|935
|align=center|4PEP
|align=center|ADB975848
<small>(ex. 64303)</small>
|align=center|ADB975845
<small>(ex. 62427)</small>
|align=center|ADB975846
<small>(ex. 62428)</small>
|align=center|ADB975847
<small>(ex. 64302)</small>
|-
|align=center|(935) 057<ref name=Marsden1984-114 />
|align=center|935
|align=center|4PEP
|align=center|ADB975844
<small>(ex. 64305)</small>
|align=center|ADB975849
<small>(ex. 62426)</small>
|align=center|ADB975850
<small>(ex. 62429)</small>
|align=center|ADB975851
<small>(ex. 64304)</small>
|}