Yes. Up to 70. I was a few days short of 72 when I got it. Doc said I was in good shape and could handle it. I told him I could run faster that the Philadelphia Eagles. He said he could too.
I was 66. Required to go through VOT. Vital Organ Testing to make sure all of my body systems could handle the SCT. Heart, lungs, and kidneys. And to top it off, I went through a psychological profile to check my mental health. That was fun. No deficiencies found.
I had my SCT when I was 74 and I did very well.
My husband was 69, and it was successful.