# Council Regulation (EEC) No 3821/85 of 20 December 1985 on recording equipment in road transport, Division 4: Environmental and electrical specifications

Extent: E+W+S+N.I.

185 The tachograph cards shall be capable of operating correctly in all the climatic conditions normally encountered in Community territory and at least in the temperature range - 25 o C to + 70 o C with occasional peaks of up to + 85 o C, ‘ occasional ’ meaning not more than 4 hours each time and not over 100 times during the lifetime of the card.
186 The tachograph cards shall be capable of operating correctly in the humidity range 10 % to 90 %.
187 The tachograph cards shall be capable of operating correctly for a five-year period if used within the environmental and electrical specifications.
188 During operation, the tachograph cards shall conform to Commission Directive 95/54/EC of 31 October 1995 , related to electromagnetic compatibility, and shall be protected against electrostatic discharges.

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Source: https://www.legislation.gov.uk/eur/1985/3821/annex/2/division/IV/division/4 (the official version)
Page: https://openlegislation.uk/eu-regulation-1985-3821/annex-2/division-IV/division-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.