# The Level Crossing (Castlerock) Order (Northern Ireland) 2016, Paragraph 9


The barriers shall display on both front and rear faces alternate red and white bands each approximately 600mm long and to the full depth of the barriers. A band of red retro-reflecting material not less than 50mm deep shall be provided along the full length of each red band.

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Source: https://www.legislation.gov.uk/nisr/2016/403/schedule/1/paragraph/9 (the official version)
Page: https://openlegislation.uk/level-crossing-castlerock-order-northern-ireland-2016/schedule-1/paragraph-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.