TESC acceptance before earning a HS diploma?

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Who's a whiz at figuring these things out? Two questions:
1. My son will not have his high school diploma for 2 years, but will finish up all requirements for BA in History from TESC in ONE year. I don't want to graduate him early since our state offers free dual enrollment for 11th and 12th graders.
Will TESC still do a degree evaluation without a high school diploma?

2. He is planning on a double major History / Political Science. How does TESC apply? Are these degrees "significantly different"? And, am I reading the first regulation right: He has to finish all his History work before taking even one PS course? If so, is it just the dates for when he takes the courses that matter?

[COLOR="DarkRed"]1. Students must complete a minimum of 15 additional
credits for a second associate degree and
30 additional credits for a second baccalaureate degree beyond the date all prior degrees were completed.
2. Students must select an option which is significantly
different from their previous degree(s).[/COLOR]

Anyone have these details?