That conclusion cannot be called into question by the fact that Article 3(3) of Directive 2003/86 expressly excludes situations such as those at issue in the main proceedings from the scope of that directive.

In such circumstances, it is clearly in the interest of the European Union that, in order to forestall future differences of interpretation, provisions taken from EU law should be interpreted uniformly (see, to that effect, judgments of 18 October 2012, Nolan, C‑583/10 , EU:C:2012:638 , paragraph 46 , and of 22 March 2018, Jacob and Lassus, C‑327/16 and C‑421/16 , EU:C:2018:210 , paragraph 34 ).

The Court of Justice has jurisdiction, on the basis of Article 267 TFEU, to interpret Article 15 of Council Directive 2003/86/EC of 22 September 2003 on the right to family reunification in situations such as those at issue in the main proceedings, where a national court is called upon to rule on the grant of an autonomous residence permit to a third country national, who is a family member of an EU citizen who has not exercised his right of free movement, if that provision was made directly and unconditionally applicable to such situations under national law.

Article 15(1) and (4) of Directive 2003/86 does not preclude national legislation which permits an application for an autonomous residence permit, lodged by a third country national who has resided over five years in a Member State by virtue of family reunification, to be rejected on the ground that he has not shown that he has passed a civic integration test on the language and society of that Member State provided that the detailed rules for the requirement to pass that examination do not go beyond what is necessary to attain the objective of facilitating the integration of those third country nationals.

It follows from a combined reading of those two provisions that, although issuing an autonomous residence permit is, in principle, an entitlement arising from five years of residence in a Member State by virtue of family reunification, the EU legislature nevertheless authorised the Member States to subject the grant of such a permit to certain conditions, which it left to be defined by the Member States.

Nevertheless, since the grant of an autonomous permit at the end of the period referred to in Article 15(1) of that directive is a general rule, the latitude left to the Member States by Article 15(4) of the directive must not be used by them in a manner which would undermine the objective and effectiveness of that article, which is, as stated in recital 15 thereof, to allow family members to be granted a status independent of that of the sponsor (see, by analogy, judgment of 9 July 2015, K and A, C‑153/14, EU:C:2015:453, paragraph 50).

Therefore, further conditions to which a Member State subjects the grant of an autonomous residence permit cannot be so onerous as to constitute a difficult obstacle to overcome, preventing, in practice, the third country nationals referred to in Article 15(1) of Directive 2003/86 from validly obtaining such a permit at the end of the period referred to in that provision (see, by analogy, judgment of 9 July 2015, K and A, C‑153/14, EU:C:2015:453, paragraph 59).

That implies, in particular, that the knowledge required to pass the civic integration examination is at a basic level, that the condition imposed by the national legislation does not lead to an autonomous residence permit not being granted to third country nationals who have demonstrated their willingness to pass the examination and have made every effort to achieve that objective, that due account is taken of specific individual circumstances and that the fees relating to that examination are not excessive (see, to that effect, judgment of 9 July 2015, K and A, C‑153/14, EU:C:2015:453, paragraphs 54 to 70).

In that regard, it should be noted, in particular, that circumstances, such as the age, level of education, economic situation or health of a sponsor’s relevant family members, must lead the competent authorities not to subject the grant of an autonomous residence permit to passing a civic integration examination, when, due to those circumstances, they are unable to take or pass that examination (see, to that effect, judgment of 9 July 2015, K and A, C‑153/14, EU:C:2015:453, paragraph 58).

(see paras 48, 51, 52, 63-65, operative part 2)