TExES 238 Exam Dates 2026: Testing Windows, Deadlines & Scheduling

Year-Round Testing: How TExES 238 Scheduling Actually Works

Unlike college entrance exams or state bar exams that lock candidates into two or three testing windows a year, the TExES Life Science 7-12 (238) exam runs on a rolling, appointment-based calendar. There is no "2026 spring window" or "fall administration" to circle on a calendar. Instead, the Texas Education Agency (TEA) and Pearson (Evaluation Systems), which develops and administers the exam as a computer-administered test (CAT), keep seats open at Pearson VUE testing centers across Texas and nationwide throughout the year.

This matters more than it sounds. For a certification exam with a first-attempt pass rate around 47%, the ability to choose your exact test date - rather than cramming toward a fixed deadline - is a genuine advantage. You control the timeline, which means you control how much preparation happens before you sit down at the testing center.

Registration Steps and Eligibility Approval

Before you can pick a date, you need approval to test. Candidates must be approved either through an educator preparation program (EPP) or directly by TEA. This approval step is the real gatekeeper in the scheduling process - not the testing calendar itself. If you're still confirming whether you meet the underlying eligibility rules, the TExES 238 Requirements guide walks through prerequisites in detail.

Once approved, registration opens through the standard testing-services portal, where you'll:

• Select the TExES Life Science 7-12 (238) exam from your approved test list
• Pay the $116 exam fee
• Choose a Pearson VUE testing center and appointment time
• Receive confirmation with your 170-day registration validity period

That 170-day window is important for planning purposes. It's not a "use it or lose it in one week" situation - you have roughly five and a half months from registration to actually sit for the exam, which gives you flexibility to align your test date with the end of coursework, a semester break, or the natural conclusion of a study cycle.

Fees, Refunds, and the 170-Day Registration Window

The exam fee is a flat $116 - there are no member or non-member pricing tiers, no discounts for retesting, and no bundled pricing with other certification exams. If you registered but need to withdraw before your appointment, you're refunded the exam fee minus a $25 processing charge. In practical terms, that means canceling costs you $25, while a true no-show forfeits the entire fee.

For a full breakdown of this fee alongside other certification-related costs (EPP tuition, background checks, PPR EC-12 exam fees, and renewal costs), see the TExES 238 Certification Cost breakdown.

What Happens During Your 5-Hour Appointment

Your Pearson VUE appointment is scheduled for a total of 5 hours. That block breaks down into 15 minutes for the CAT tutorial and compliance agreement, followed by 4 hours 45 minutes of actual testing time. Within that testing period, you'll answer 100 selected-response questions covering all six domains of the exam framework. Some of those 100 questions are unscored field-test items used to evaluate future exam content, though you won't know which ones - every question should be treated as if it counts.

There's no calculator or reference sheet provided for this exam, which reinforces how much of the content - biochemical pathways, taxonomic relationships, genetic ratios, ecological calculations - needs to be internalized rather than looked up in the moment.

Because the appointment structure and pacing catch many candidates off guard, it's worth reviewing exactly how the 100 questions map to the six domains before test day. The TExES 238 Exam Domains Guide breaks down each competency area in depth, and a condensed version lives in the TExES 238 Cheat Sheet for last-minute review.

Score Reporting and What 240 Means for You

Scores post at 10:00 p.m. Central on the published score report date associated with your testing window. You'll need a scaled score of 240 out of a possible 100-300 range to pass. Because the scale isn't a simple percentage, many candidates misjudge how close - or far - they actually were from passing. The TExES 238 Passing Score guide explains exactly how raw questions answered correctly translate into that scaled number.

If you're trying to gauge realistically how difficult reaching 240 will be given your background, the How Hard Is the TExES 238 Exam guide and the TExES 238 Pass Rate analysis both dig into the statewide pass-rate data - including the fact that this exam posted the lowest pass rates among major secondary science TExES exams for the 2024-2025 program year.

Retake Rules: Five Attempts, 30-Day Waits

If your first attempt doesn't reach 240, the scheduling calculus changes. Candidates get five total attempts at TExES 238, with a mandatory 30-day waiting period between each attempt. That means even a full round of five attempts, tested back-to-back at the minimum wait, spans several months - plan accordingly if a retake becomes necessary.

If you exhaust all five attempts without passing, you cannot simply register for a sixth try. You'll need a formal test-limit waiver from TEA before scheduling another appointment. This is a strong argument for using each attempt deliberately rather than treating early attempts as "practice runs" - a mindset the TExES 238 Study Guide addresses directly when discussing first-attempt preparation strategy.

Building a Scheduling Strategy Around the Six Domains

Because you choose your own test date, the smartest scheduling move is working backward from domain weight rather than forward from a generic calendar. Since Cell Structure and Processes, Heredity and Evolution of Life, and Diversity of Life together account for roughly 60% of the exam, your study calendar should give these three domains the most calendar time - not equal time across all six.

Only after allocating time proportionally should you layer in generic review techniques - timed question blocks, spaced review of missed concepts, and short daily recall sessions. These methods work for any exam, but they only pay off here when applied against the correct domain weighting. For a domain-by-domain competency breakdown to plug into this timeline, revisit the exam domains guide.

Setting Your Own 2026 Deadlines

Since TExES 238 has no externally imposed testing windows, your "2026 deadlines" are really self-imposed milestones tied to your certification timeline. Common anchor points worth scheduling backward from include:

• EPP program completion date - many programs require passing scores before a candidate can be recommended for certification
• Hiring season - districts typically post positions in spring for the following school year, so passing well before then strengthens job applications; see TExES 238 Jobs for what employers look for
• PPR EC-12 (160) scheduling - since a first Texas classroom certificate also requires passing this pedagogy exam, many candidates schedule it a few weeks after TExES 238
• Registration expiration - count 170 days forward from your registration date and build a buffer before that deadline

Whatever anchor date you choose, work backward using the domain-weighted timeline above, and use full-length practice exams in the final two weeks to confirm readiness before locking in your Pearson VUE appointment.

Frequently Asked Questions