They are often simply known as the one, two three approaches comprising of a target to screen within one month, diagnosis within two months and an appropriate children’s plan in place by three months. 3b.) BSL (British Sign Language) update: BSL National Plan – Deafblind update Isabella Goldie and John Whitfield, Deafblind Scotland Isabella Goldie and John Whitfield gave a brief overview of the BSL (British Sign Language) National Plan Progress Report and provided comprehensive detail regarding deafblindness, work of Deafblind Scotland and some issues in Scotland.