Hi Laura...
I have two thoughts.
First, the requirements for compliance courses often don't make good sense. You can fight the good fight and make your case, but when it's turned down for the sake of "the rules," you just have to consider that fighting any further is like trying to hold the tide back with a sponge.
So the question becomes (as you've noted) how to you add material in a useful way to meet the time requirement?
I looked at your website and it looks like you're doing safety training or HR courses. So here's the second thought along those lines...
You've already produced the content that meets the objectives (to avoid this accident or that pitfall). See if you can find or make up one or more scenarios for each of those accidents or pitfalls to use as examples or case studies to back up your content. These could be framed as linear content, like "Joe did this, and this is the result'" followed by "If Joe had done this instead, THIS would have been the result."
Or you could build some interactivity in the scenarios. Set the scene, give the user a list of choices, and with hyperlinking of customized feedback in Quizmaker, explain the consequences -- both positive and negative -- of the choice made.
If you can add a dollar amount to what each poor decision costs the company (or what each good decision saved the company), your stakeholders will love it.
On the one hand, you could look at this as "padding" the material. But on the other hand, you could look at this as reinforcing the lessons you've taught.
Hope that helps... and don't let 'em make you crazy with requirements that don't make good training sense. It'll only make you go bald.
Best Regards,
Dave