The A1 and A421 Trunk Roads (Black Cat Roundabout Chawston to A428 Wyboston, Bedfordshire) (Temporary Restriction and Prohibition of Traffic and Pedestrians) Order 2010
《2010年A1及A421干线道路（黑猫绕道查斯顿至A428怀波士顿 贝德福德郡）（临时限制及禁止交通及行人）令》

The A1 Trunk Road (Biggleswade South Roundabout to Black Cat Roundabout, Bedfordshire) (Temporary Prohibition of Traffic) Order 2012
A1主干道（Biggleswade South Roundabout to Black Cat Roundabout Bedfordshire）（临时禁止交通）命令2012

The A1 Trunk Road (A421 Black Cat Roundabout to A603/B1042 Sandy Roundabout, Bedfordshire) (Temporary Restriction and Prohibition of Traffic) Order 2010
A1主干道（A421黑猫环岛至A603\/B1042桑迪环岛 贝德福德郡）（临时限制及禁止交通）令2010

The A1 Trunk Road (Blunham to Wyboston) and A421 Trunk Road (Cardington Interchange to Black Cat Roundabout) (Bedfordshire) (Temporary Prohibition of Traffic) Order 2013
《2013年A1干道（布伦汉姆至怀波士顿）及A421干道（卡丁顿交汇处至黑猫环岛）（贝德福德郡）（暂时禁止交通）令》

The A1 Trunk Road (Blunham to Wyboston) and the A421 Trunk Road (Renhold/Great Barford Interchange to Black Cat Roundabout) (Bedfordshire) (Temporary Restriction and Prohibition of Traffic) Order 2014
2014年A1干道（布伦汉姆至威士顿）及A421干道（仁恒\/大巴福交汇处至黑猫环岛）（贝德福德郡）（临时限制及禁止交通）令