Anchor strength reduction / min. distances from joints in slabs on grade

We find that many installers are anchoring on or in very close proximity to control joints (saw cuts, groove / insert joint, construction joints) in slabs-on-grade. At times, based on the application, this is of concern.

I was recently advised that, based on independent tests performed, anchor pullout strength was essentially unaffected when expansion anchors were installed very close to (1”) or on a slab joint.

I am somewhat not surprised given that specific ICC-approved anchors are designed to perform in cracked concrete, however, I am curious as to what your thoughts and recommendations would be on this issue for the use of Hilti Kwik Bolt 3, Kwik Bolt TZ, Hwik HUS and HIT Z w/ HY200 anchors.  Does Hilti have an official position on minimum distances from joints (not edge distances) without compromising published anchor strength and performance?

Thanks!