Yes, I'm happy to give some examples.
Typically, they arise from what we call sanitary and phytosanitary measures. At their heart, and when done well, they're intended to protect human, animal and plant health. They are typically designed to have corollary import requirements related to potential concerns. That could be insects or food-borne pathogens. It could be plant diseases and weeds. I think what you're hearing from us is that when these are overly restrictive or not scientifically justified, they become NTBs. I think we all have examples of those, but that's the basic category from which they emerge.
I would say that weed seed is one that's been quite prevalent across multiple crops recently, depending on the market in-country, but that would be a good example.