PRICES AND INCOMES .
ARTICLE 11
TO ENABLE THE GUIDELINES WHICH ARE TO ADOPTED BY THE COUNCIL TO BE DRAWN UP AND TO ENABLE THEIR APPLICATION TO BE MONITORED , MEMBER STATES SHALL ENSURE THAT ESSENTIAL INFORMATION IS GATHERED QUICKLY AND SHALL COMMUNICATE IT TO THE COMMISSION AS SOON AS IT IS AVAILABLE .
ARTICLE 12
MEMBER STATES SHALL TAKE THE MEASURES NECESSARY TO COMPLY WITH THIS DIRECTIVE WITHIN 12 MONTHS OF ITS NOTIFICATION . THIS PERIOD SHALL , HOWEVER , BE EXTENDED TO TWO YEARS FOR THE IMPLEMENTATION OF ARTICLES 5 AND 8 .
ARTICLE 13
THIS DIRECTIVE IS ADDRESSED TO THE MEMBER STATES .
DONE AT BRUSSELS , 18 FEBRUARY 1974 .
FOR THE COUNCIL
THE PRESIDENT
H . SCHMIDT
( 1 ) SEE P . 16 OF THIS OFFICIAL JOURNAL .