my %local_mapping_for = (
NT217 => 'RCD', # Harrogate
NT220 => 'RWY', # Huddersfield
NT221 => 'RWA', # Hull
NT225 => 'RR8', # Leeds
NT239 => 'RWF', # Tunbridge Wells
NT242 => 'RL4', # Wolverhampton
NT243 => 'RCB', # York
NT308 => 'RTP', # East Surrey
NT320 => 'RR1', # Parkway (Solihull)
NT322 => 'RWE', # Leicester
NT328 => 'RAE', # Elland
NT330 => 'RXF', # Methley Park (Wakefield)
NT331 => 'RWA', # Hull
NT332 => 'RR8', # Leeds
NT408 => 'RVV', # Kent & Canterbury
NT409 => 'RGZ', # Chelsfield Park (Kent)
NT448 => 'RWY', # Huddersfield
NT818 => 'RAE', # Yorkshire clinic (Bradford)
NTY65 => 'RAX', # Kingston (upon Thames)
NV106 => 'RWF', # Blackheath (Maidstone)
69390 => 'RJE', # North Staffs pathology lab
);