The issue is the proper classification of Master Lock cable locks. Customs originally classified the locks in HTSUS item 8301.10.50 as "Padlocks: not of cylinder or pin tumbler construction: Over 6.4 cm in width." That tariff item has a duty rate of 3.6%. Master Lock argued for classification in item 8301.10.20, which covers locks with a width not over 3.8 cm and has a duty rate of 2.3%.
I am going to save myself two thousand words by saying, this is what we are talking about:
|8020D: Picture from Amazon|
|8119DPF: Picture from Amazon|
There are a couple of possible answers. First, it might be the length between the red lines in the top picture. That seems to encompass the width of the locking mechanism. The curved inserts on each side would be considered other parts of the assembly; probably extensions of the cable. Another way to measure the width is to consider it to be the distance between the far ends of the "shoulders." This extends the width further.
While you think about that, ask yourself this illuminating additional question: How long is the lock?
Think about it.
The answer matters.
It turns out that CBP has not been measuring the width of the lock at all. Rather, it has been measuring that segment of the length made up by the lock itself. "Length" refers to the longest dimension of a body. Put another way, length is the longest straight line that can be drawn through a body. Based on that, CBP has always included the cable in the length of the lock. It is, therefore, inconsistent (and incorrect) to treat the length of the lock as its width.
Customs and Border Protection has made a course correction. It now recognizes that the width is the line perpendicular to the length. As a result, it is approximately, this:
Having re-measured the locks, Customs agreed with Master Lock that they are classifiable in 8301.10.20 as being less than 3.8 cm in width. That is a win for Master Lock and a good decision by CBP.