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Certificates in respect of agreements, decisions or concerted practices. 
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5.—Section 4 of the Principal Act is hereby amended by the substitution of the following subsection for subsection (4): 
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“(4) (a) The Authority may certify that in its opinion, on the basis of the facts in its possession— 
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(i) an agreement, decision or concerted practice, or 
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(ii) a category of agreements, decisions or concerted practices, 
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does not contravene subsection (1). 
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(b) Where a certificate under this subsection covers a category of agreements, decisions or concerted practices, any agreements, decisions or concerted practices (as the case may be) within that category need not be notified under section 7 to benefit from the certificate.”. 
 
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