As you read Article 38 you will see that it states that for protection of firefighters any facility provided under this Order or any other enactment, including any repealed or revoked, must, (absolute duty) where necessary (see the glossary of terms in the back of any guidance doc) or better still use the description in Article 13, be ...maintained... by the RP. It follows that signage provided under other legislation whether repealed or revoked, placed for the protection of firefighters, should be maintained. This would follow directly from Articles 12 where the FRA should indicate Dangerous substances as Ignition sources in Step 1 and then people at risk, including firefighter in Step 2. The control measures that come out of this FRA will include the provision of information to firefighters in some form. It is not necessarily signage but that existing as a control measure should be kept.