Article 3
Determination of whether a sufficient number of credit ratings is available
1.
For the purpose of the short run default rate calculation, the number of items assigned the same rating category by the ECAI for which the mapping is being performed shall be deemed sufficiently numerous, where the items meet all of the following requirements:
(a)
they are sufficient with respect to the perceived risk profile of the rating category, considering as an indicator, the number of items representing the inverse of the long run default rate benchmark of the rating category, as referred to in point (a) of Article 14;
(b)
they are representative of the most recent pool of items assigned the same rating category.
2.
For the purpose of the long run default rate calculation, the number of items assigned the same rating category by the ECAI for which the mapping is being performed shall be deemed sufficiently numerous where at minimum the most recent 10 short run default rates as referred to in paragraph 1 are available.