Which is the category for Electronic Multimeter Without a Recording Device, NOT for use in an aircraft.

I could see a system that cross-references that code with known trademarks -- kind of a like a "Be on Lookout Of" but for design trademarks.

More generally, I wonder how is it possible that inspectors are expected to deal with all the grey market goods that could be entering the border? Perhaps, a better example are children's toy jewellery which on numerous times have been found to have toxic levels of chemicals (eg. lead to levels high enough to send children into hospitals). Do the inspectors actually test for lead, or is their some sort of certification paper that is required?

What about those cheap electrical parts that you can buy (e.g. computer/iphone power adapters). I read a tear down report stating that these were unsafe because wiring not done to safety codes, so who is responsible for inspections before they enter the border?

The general case is complex, and I've never been able to read how the process is handled, so I assume given the quantity of products being imported they are often priced so cheap because they never go through the QA and safety standards that would be required if they were manufactured here. --Another example of pricing that doesn't factor in the total cost of the good, that is Chinese toys are cheaper than local because they aren't tested to our codes thereby avoiding whole cost structures that local companies incur resulting in cheaper products yet overall they are more expensive to society because 1% of buyers end up in the hospital and incurring those costs.

There is a really interesting NPR "Planet Money" podcast where they talk to customs folks about the import process. (They were tracing the supply chain for a t-shirt) Customs agents have lots of obscure knowledge about these things.