Headings 1509 and 1510 cover only oils derived solely from the treatment of olives and having the characteristics, with regard to the content of fatty acids and sterols, which are referred to in Annex I to Commission Regulation (EEC) No 2568/91 . Their presence can be determined using methods set out in Annexes V and X to that Regulation. Headings 1509 and 1510 do not cover chemically altered olive oil (in particular re-esterified olive oil) and mixtures of olive oil with other oils. The presence of re-esterified olive oil is ascertained using the method set out in Annex VII to Regulation (EEC) No 2568/91. Subheading 1509 10 covers only the olive oils defined in points 1, 2 and 3 below, obtained solely by mechanical or other physical means under conditions which do not lead to the modification of the oil, and which have not undergone any treatment other than washing, decantation, centrifugation or filtration. Olive oils obtained using solvents, chemical or biochemical reagents, or re-esterification processes, as well as any mixtures with oils of other kinds, are excluded from this subheading. For the purposes of subheading 1509 10 10, ‘lampante olive oil’ means olive oil having the characteristics of olive oils of category 3 as set out in Annex I to Regulation (EEC) No 2568/91. For the purposes of subheading 1509 10 20‘extra virgin olive oil’ means olive oil having the characteristics of olive oils of category 1 as set out in Annex I to Regulation (EEC) No 2568/91. Subheading 1509 10 80 covers other virgin olive oils which have the characteristics of olive oils of category 2 as set out in Annex I to Regulation (EEC) No 2568/91. Subheading 1509 90 covers olive oil obtained by the treatment of olive oils of subheading 1509 10 10, 1509 10 20 and/or 1509 10 80, whether or not blended with virgin olive oil, and having the characteristics of olive oils of categories 4 and 5 as set out in Annex I to Regulation (EEC) No 2568/91. For the purposes of subheading 1510 00 10, ‘crude oils’ means oils with the characteristics of olive oils of category 6 as set out in Annex I to Regulation (EEC) No 2568/91. Subheading 1510 00 90 covers oils obtained by the treatment of oils of subheading 1510 00 10, whether or not blended with virgin olive oil, and oils not having the characteristics of the oils referred to in points B, C and D of this additional note. Oils of this subheading must have the characteristics of the olive oils of categories 7 and 8 as set out in Annex I to Regulation (EEC) No 2568/91.