In this task, you are provided with an article about the legal acts. Your task is to generate a headline for that article.

The date 31 August 1968 shall be substituted for the date 31 July 1968 in Article 1 of Regulation (EEC) No 662/69. The following subparagraph shall be added to Article 3 of Regulation (EEC) No 662/69 and Article 18 (1) of Regulation (EEC) No 685/69:'However, Member States may fix the maximum weight at 250 g.' The provisions of Article 2 shall not apply to butter: (a) covered by invitations to tender published in the Official Journal of the European Communities before this Regulation enters into force ; and(b) sold, before this Regulation enters into force, in accordance with the provisions of Regulation (EEC) No 662/69. This Regulation shall enter into force on the third day following its publication in the Official Journal of the European Communities. (1)OJ No L 148, 28.6.1968, p. 13. (2)OJ No L 86, 10.4.1969, p. 8. (3)OJ No L 121, 22.5.1969, p. 8. (4)OJ No L 90, 15.4.1969, p. 12. (5)OJ No L 139, 11.6.1969, p. 13.This Regulation shall be binding in its entirety and directly applicable in all Member States.
Regulation amending Regulations (EEC) Nos 662/69 and 685/69 on intervention on the market in butter and cream