This is the answer I got today:
In
response to your question, the CFIA regularly inspects product in
grading
stations to ensure the products meet the regulatory requirements
grading
station and compliance of the product.
Eggs
are inspected by randomly drawing samples from a lot designated by
the
inspector and examining each egg of those samples both visually and
under
a candling light (which illuminates the interior of the egg) to
ensure
the egg meets the requirements of the regulations for Canada A.
Please
let us know if you need anything further.
Thank
you,
Lisa
Gauthier