12.—(1) The signs shown in diagrams 2001, 2002, 2003, 2004, 2005, 2005.1, 2006, 2007, 2008, 2009, 2010.1, 2010.2, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2021.1, 2022, 2023, 2024, 2025, 2030, 2030.1, 2032, 2033, 2034, 2035 and 2717 may be placed only on or near a primary route.
(2) The signs shown in diagrams 2026, 2027, 2027.1, 2028 and 2029 may be placed only on a primary route, or on a non-primary route at a junction with a primary route.