Driving-and when to stop

@2me Depending on where you live, there may be a few options. Talk to your doctor, your state counsel on aging, your insurance agent or even AAA to locate one.

Perhaps you can take the AAA or AARP 55 Alive or similar safe driver program (in person, not online). If you do it together, no stigma for him, but you will be able to see how he does recognizing new features like roundabouts and responding to multiple things going on at once.

If you have access to a clinic/hospital that treats a lot of trauma/TBI patients, they may have a "driving evaluation" program. There are conversation, observation, computer and field (driving) components.

If neither resource is available, check with your state DMV about how to refer someone for a mandatory driver's test.

In the meantime - here are a few things I have found helpful -
Two sets of eyes in unfamiliar places, heavy traffic or construction zones. Not to backseat drive - and let him know you are available to chime in if he has a question about which lane, exit, etc.
In these situations turn down or turn off the radio to limit distractions.
Having and using the best auto technology you can afford - lane departure alerts, adaptive cruise control that automatically maintains safe distance, side warning lights of traffic approaching in your blind spot.

How is your husband accepting his diagnosis? Does he accept that there will be a time he needs to hand over the keys?

2me. the DMV offers testing, if this becomes a concern.
I offer this counterweight.
A friend's children decided she shouldn't drive, so they disconnected the battery on her car and told her it couldn't be repaired. Of course, this trickery wouldn't work with your husband. None of these children had the time to take her to appointments or the store, so she'd ask me. She could make it to the grocery store, but couldn't carry the groceries back. She was skipping her doctor's appointment because it was two busses across town. And she hadn't seen her best friend in months. I wasn't in on the plot, so was easily able to have her car "repaired," but by then her license had expired. I took her to the DMV where she aced all the testing. The employee who tested her took his break to give me the most wonderful lecture. Thinking I was his daughter, he let me know in stern terms that driving is a privileged that I had no right to deprive her of.
Stay on his side; let the DMV decide.

Thank you, Sue. There is some great advice here! I would be wise to look into these options. And thankfully, his vehicle is a newer one, and has those features! I’m not sure he sees that on the horizon yet, but he has always been an “even-keel” person who would never want to hurt others, or possibly be the cause of an accident.

This advice is well-worth remembering!!! I love it, and I thank you for posting. So sorry you got the lecture (undeservedly) but since you did, you are able to help people like me. ♥️

When a 20 year old runs her car into a storefront, it's cause she's young and inexperienced. If an 80 year old does it, better take away his license cause he's too old.
Maybe some people are bad drivers, or on THC gummies, having nothing to do with their age.
Being closer to 80(!) , there are times at night when I am driving a little tired, maybe listening to a podcast, and I don't know what parkway I'm on (3 of them all look alike), or what exit to get off. I'm thinking Henry Fonda On Golden Pond. Then I reason it's late. It's dark. My mind was elsewhere, and I am tired, so maybe this is normal, if a little dangerous.
I realize that my reflexes are probably more important than my brain GPS , and since they are working as good as ever, I can keep my license of 60 years, and not have to crash a storefront to give it up.

Previously on this site I have brought up the issue of liability and driving with a diagnosis of record regarding cognitive decline. The liability is real, and you share in it with your husband since you have knowledge of his MCI in the event of an auto accident regardless of blame. Your financial security can be exposed to significant risk in defending against a judgment that is not in your husband's favor regardless of how comprehensive your insurance may be. It is in the best interest of your husband, you and the public at large, to take the advice of others on this site to schedule a driving evaluation recognized by your state that affirms his ability to drive safely or sets limits on his driving. These tests do come with a fee and may also be required on an annual basis, but at least your shared liability may be lessened by taking this action. While you may also ask your doctor's opinion about your husband's driving, keep in mind how willing he/she may be to share liability particularly to their medical license. As you explore literature about MCI and what may come next, you will come to know that with cognitive decline and dementia there is no way to predict the first-time driving judgment may be impaired - even temporarily.

2me, the best part was that my friend hearing his anger found strength. It was months before her family discovered that she was driving. When they staged an "intervention," she was ready.

In most states
"informing driver’s licensing agencies (i.e., the Department of Motor Vehicles) about potentially dangerous drivers is not a legally sanctioned reason for breaching confidentiality, physicians may be unable to disclose. So, if they follow their professional obligation to report patients (pursuant to detailed guidelines [14]), doctors may face civil and criminal liability for unauthorized disclosure under some state laws [15]."

If an accident occurs the insurance companies may require disclosure of any health conditions that could be considered a factor. Nowadays folks "lawyer up" to protect themselves. Depending on the diagnosis I would recommend caution. Prior to signs, symptoms, or diagnosis an accident involving a teenager running a clearly marked intersection with both a stop sign and a warning sign in broad daylight was treated as if it was the fault of the older, white haired gentleman whose compact car he hit so hard the car was pushed up on the opposite sidewalk. Clearly age discrimination by the young police officer who responded. No ticket issued. No medical assistance offered. Boy was a minor. Obviously the young man had not stopped and was exceeding the 25 mph speed limit. Our world.

steilacoomcaregiver,
it is impossible to click like on this post. Ageism abounds. We are so eager to license the young whose brains halves haven't even connected, whose accidents cause the most deaths. And so eager to constrain the elderly.
Mild cognitive impairment is not the same as age, though. When diagnosed in prelude to and as a part of dementia, by a specialist, we need to take care. Otherwise, we are all mildly cognitively impaired.