Every time I hear that I think it sounds like a really odd way of specifying frequency. Does it mean that you should check it less than seven years from the last time you checked it? That gives some seven-year periods that only have one check in them. If you have at most 3½ years between checks then every seven-year period has at least two checks in it - but then why phrase it in this way?
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Date: 2011-05-16 02:20 pm (UTC)