<s>[INST] The next text is a question of a member of the European parliament:"Does the Commission plan to implement or amend Council Directive 88/77/EEC on the approximation of the laws of the Member States relating to the measures to be taken against the emission of gaseous pollutants from diesel engines for use in vehicles, in order to make a common situation for Member States? Specifically, does the Commission plan to rectify the current situation whereby individual Member States each have their own authority to set requirements for vehicles, for example, the obligation to have speed limiters in certain vehicles? This in turn may dissuade cross-border trading and/or mobility."
Analyze carefully the text and assign it to the most relevant policy area among those listed below. Do not explain your answer and return only a number.
Policy area numbers: 1 = Macroeconomics
2 = Civil Rights, Minority Issues and Civil Liberties
3 = Health
4 = Agriculture and Fisheries
5 = Labour, employment and pensions
6 = Education
7 = Environment
8 = Energy
9 = Immigration
10 = Transportation
12 = Law and Crime
13 = Social welfare
14 = Regional and Urban issues and Planning
15 = Banking, finance and domestic commerce issues
16 = Defence
17 = Space, science, technology, and communications issues
18 = Foreign trade
19 = International affairs and foreign aid
20 = Governance and government
21 = Public Lands, Water Management and Territorial Issues
23 = Culture and media
[/INST]. Answer = [10]. </s>
Does the Commission plan to implement or amend Council Directive 88/77/EEC on the approximation of the laws of the Member States relating to the measures to be taken against the emission of gaseous pollutants from diesel engines for use in vehicles, in order to make a common situation for Member States? Specifically, does the Commission plan to rectify the current situation whereby individual Member States each have their own authority to set requirements for vehicles, for example, the obligation to have speed limiters in certain vehicles? This in turn may dissuade cross-border trading and/or mobility.