A Technical Specification (TS) is a normative document produced and approved by a Technical Committee.
A CEN/TS can be developed by CEN Technical Committees as a pre-standard which containts technical requirements for innovative technology, or when various alternatives need to coexist in anticipation of future harmonization that would not gather enough as to allow agreement on a European Standard (EN).
A TS does not have the status of an EN but may be adopted as national standard. Moreover there is no standstill, no public enquiry and no weighted vote.
A TS must be produced in one of the official CEN languages and its maximum lifetime is reduced to two or three years. A TS may not conflict with an EN. If a conflicting EN is subsequently published, the TS must be withdrawn.