Schedule 1 LOAD-BEARING STANDARDS Original text. Later amendments are not shown. IThe 1969 Construction and Use Regulations Standard IIType HA (equivalent lane loading) Standard IIIType HA (equivalent lane loading) and 37½ units of Type HB (abnormal unit loading) Standard IVType HA (equivalent lane loading) and 45 units of Type HB (abnormal unit loading) Standard ← Signature Schedule 1 Schedule 2 →