Theoretically, a 4.5 means the same thing at Tiers A, B and C. Listening and reading are capped in Tiers A (4.0) and B (5.0). However, as a result of capping in Tiers A and B, students may not demonstrate the proficiency that they have obtained in the capped domains. Students deemed likely to score a composite PL of 4.0 should be given Tier B or C. You may find more information at New Jersey English Language Learner Identification and placement Guidance Document 2019-2020
A student can be eligible for exit if they score a 4.5 at any tier, but multiple measures must be taken into account before exiting. Sample forms for multiple criteria can be found at Multiple Indicators Samples
For more information on required multiple criteria please see 6A:15-1.10(c) of the New Jersey Bilingual Education Administration Code
(Bilingual Education Code).