I found the answer on the CIC web;' U/ w9 I/ v1 S( r' V& Q1 b0 ~
"The certificate must have been issued no more than three months before you submit your application" / j/ x& |7 D0 P e2 \' Z5 A& r( A 1 i! {6 l% K. H S: z. y$ KOurs were more than one year when we applied.