Design Standards Amendments

Transport Scotland regularly updates its design guidance through the issue of Interim Amendments to the design standards. These amendments are instructions which replace or compliment the design standards, and are applicable only in Scotland.

Interim amendments
Interim Amendment No.	Date of issue	Title
40	Dec 2011	Road Safety Auditor Certification - Compliance with EC Directive 2008/96/EC
39	Aug 2011	Use of Eurocodes for the Design of Bridges and Road Related Structures
38	May 2011	Temporary Barrier Decision Tool (TBDT)
37	Dec 2010	Design of Single 2+1 single roads
36	Dec 2010	Guidance on structural safety reporting relating to the Scottish Trunk Road Network
35	Dec 2010	Guidance on the Introduction of Transport Scotland TS 2010 surface course specification
34	Nov 2010	Guidance on the use of High Friction Surfacing at Signalised Pedestrian Crossings on single carriageway Trunk Roads
33	Oct 2010	Guidance on the use of various documents relating to General & Principal Inspections for Trunk Road Structures
32	Oct 2010	Clarification on the deflection of permanent formwork during the construction of trunk road bridges
31	Apr 2010	Superseded by IA N°39
30	Oct 2009	The Use of Foamed Concrete
29	Jun 2009	Identification of ‘Particularly at Risk’ Supports
28	Oct 2010	Certification of Combined Kerb and Drainage Products
27	May 2008	Implementation of Construction (Design and Management) 2007 and the withdrawal of SD 10/05 and SD 11/05
26	Feb 2008	The Anchorage of Reinforcement and Fixings in Hardened Concrete
25	Aug 2007	Assessment and Upgrading of Existing Vehicle Parapets
24	Jul 2007	Guidance on implementing results of research on bridge deck waterproofing
23 - Revision 2	Mar 2012	Implementation of BS8500-1:2006 Concrete – Complementary British Standard to BS EN 206-1
22	Oct 2006	Implementation of New Reinforcement Standards (BS 4449:2005, BS 4482:2005, BS 4483: 2005 and BS 8666:2005)
21	Oct 2006	Principal and general inspection of sign / signal gantries, and gantries with low handrails or open mesh flooring (BD 63/94 and BA63/94)
20	Jul 2006	Interim Management Strategy for Concrete Half-Joint Deck Structures
19	-	Superseded: See TD 19
18	Oct 2005	Manual of Contract Documents for Highway Works (MCHW); the Use of the Saturation Ageing Tensile Stiffness (SATS) Test
17	-	Superseded by IA N°23
16	Aug 2003	Manual of Contract Documents for Highway Works (MCHW); Sustainability in Construction - the Considerate Constructors Scheme
15	-	Superseded by IA N°19
14	Mar 2002	Manual of Contract Documents for Highway Works (MCHW); Aggregates Levy
13	Sep 2000	Manual of Contract Documents for Highway Works (MCHW); Supply of Goods and Services by Local Authorities
12	Jan 2000	Manual of Contract Documents for Highway Works (MCHW); Volume 1: Appendix A: Sector Scheme 14 (for the Production of Asphalt Mixes)
11	Dec 1999	Manual of Contract Documents for Highway Works (MCHW); The Housing Grants, Construction and Regeneration Act 1996
1-10	-	Interim Amendments 1-10 are no longer applicable

Any enquiries should be directed as listed at the end of the Interim Amendment.

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