What is the Interstate Medical Licensure Compact (IMLC) and how does it work?

The IMLC is an agreement among approximately 42 states plus DC and Guam that provides an expedited pathway for physicians to obtain licenses in multiple participating states. You apply through your State of Principal License (where you hold your primary license and spend most of your professional time). Once your application is verified, which typically takes 2 to 4 weeks, you can apply for expedited licenses in other IMLC member states, often receiving them within 1 to 3 weeks per state. You still hold individual state licenses, but the application burden is dramatically reduced compared to applying to each state medical board independently. Fees vary by state but typically run $500 to $2,000 per state. Verify current member states at imlcc.org before making decisions, as the list changes.

Does PSYPACT allow me to see patients in all member states immediately?

PSYPACT authorizes licensed psychologists to practice telepsychology in all member states under a single credential called the E.Passport. You do not need individual state licenses in member states; the E.Passport serves as your practice authorization. The application typically takes 4 to 6 weeks. You must maintain your primary state license in good standing at all times, and you must follow each member state's scope-of-practice rules, which can vary. If you want to practice temporarily in person in a member state (not just via telehealth), you apply separately for an IPC credential. Verify current member states at psypact.org before making decisions.

Can I prescribe controlled substances across state lines through a compact?

Compacts streamline state licensing but do not affect DEA registration or state-specific controlled substance laws. For controlled substance prescribing via telehealth, you still need to comply with the Ryan Haight Act and its exceptions, maintain appropriate DEA registrations (which may include state-specific DEA numbers in some states), and follow each state's prescribing rules. Some states have additional requirements for remote prescribing of controlled substances that go beyond federal law. See our guide to the Ryan Haight Act for a full breakdown of the current federal telehealth prescribing rules.

How much will malpractice insurance cost when I expand to multiple states?

This varies significantly by carrier. Some carriers charge per-state surcharges that can range from $200 to $1,000 per state per year. Others offer flat multi-state coverage at minimal additional cost. For a practice adding 15 states, the annual difference between an expensive per-state carrier and a flat-rate carrier can be $3,000 to $15,000. Contact your carrier before you apply for compact licenses, ask specifically about per-state costs, and get coverage confirmation in writing for each state before you begin seeing patients there. If your carrier's pricing is not competitive, shop alternatives before you commit to an expansion plan.

How do I track CME requirements when I am licensed in 15 states?

Manually, until you build a system. Each state sets its own CME hour requirements, topic mandates, and renewal cycles independently. A provider licensed in 15 states may face 15 different renewal deadlines over 24 months, each with different requirements. Start by building a tracking spreadsheet that captures each state license number, renewal date, required hours and topics, and current completion status. Several CME management platforms offer state-specific requirement tracking. Thimble Portal tracks license status and expiration dates by state. Missed renewals create licensure gaps that create liability exposure and can affect your compact eligibility, so this is an operational priority, not a nice-to-have.

Telehealth Across State Lines: The 2026 Guide to Interstate Licensure Compacts

A 3-provider functional medicine clinic in Colorado was serving 800 patients across the Front Range. After enrolling in the IMLC and PSYPACT, they were seeing patients in 38 states within 6 months. Their revenue grew from $45K/month to $120K/month without hiring a single new provider. That outcome is not typical, but it is also not rare. Interstate licensure compacts are the highest-leverage growth tool most small telehealth practices are not using.

The compact landscape is genuinely confusing. Different compacts cover different provider types. Each has its own enrollment process, its own fee structure, and its own list of participating states that changes every year. Some states that you might expect to be members are not. And the rules for what you can actually do after enrolling vary by specialty.

This guide cuts through the confusion: which compacts matter, who they cover, which major states are still holdouts, how to decide which compact to apply to first, what the revenue math actually looks like, and what infrastructure you need before you can serve patients across state lines.

What Is an Interstate Licensure Compact?

An interstate licensure compact is an agreement between states that allows licensed providers in one member state to practice in other member states through a streamlined process. Instead of applying for individual licenses in every state, you apply through the compact and receive practice privileges in all participating states.

Compacts do not eliminate state licensing; they streamline it. You still have to meet each state's requirements, but the administrative burden is reduced from 'apply to 40 state medical boards separately' to 'apply once to the compact and maintain compliance with each state's ongoing requirements.' The ongoing compliance part is where practices often underestimate the burden, but we will get to that.

The Major Compacts for Telehealth

IMLC: Interstate Medical Licensure Compact

Who it covers: Physicians (MD and DO)
States participating (2026): Approximately 42 states plus DC and Guam. Verify current member states at imlcc.org before making business decisions, as membership changes frequently.
What it enables: Expedited licensure in member states. You still receive individual state licenses, but the application process is dramatically streamlined.
How it works: Apply through your State of Principal License (SPL). Once verified, you can apply for expedited licenses in other IMLC states, typically receiving them within 1 to 3 weeks.

PSYPACT: Psychology Interjurisdictional Compact

Who it covers: Licensed psychologists
States participating (2026): Approximately 43 states plus DC. Verify current member states at psypact.org before making business decisions.
What it enables: Telepsychology and temporary in-person practice in member states under a single compact authorization.
How it works: Apply for E.Passport (for telepsychology) or IPC (for temporary in-person practice). This is the most mature and actively used compact for telehealth behavioral health.

NLC: Nursing Licensure Compact

Who it covers: Registered Nurses (RNs) and Licensed Practical Nurses (LPNs/LVNs)
States participating (2026): Approximately 43 states as of 2025-2026 (with Connecticut and Pennsylvania among recent additions). Verify current member states at ncsbn.org before making business decisions.
What it enables: A single multistate license that allows nurses to practice in any NLC state without individual state licenses.
How it works: Nurses apply in their primary state of residence. The multistate license is then valid in all NLC states. Critical for telehealth programs that rely on RN care coordination.

APRN Compact

Who it covers: Advanced Practice Registered Nurses (NPs, CNSs, CRNAs, CNMs)
States participating (2026): The APRN Compact passed its implementation threshold in 2024. Verify the current participating state count at aprncompact.com, as implementation is actively expanding.
What it enables: Multistate APRN license similar to the RN compact.
How it works: Implementation is still rolling out. Most APRNs still need individual state licenses in 2026, but coverage will expand significantly in the next 2 to 3 years. Monitor aprncompact.com for updates.

Other Specialty Compacts

PT Compact: Physical Therapists, approximately 37 states
OT Compact: Occupational Therapists, growing
ASLP-IC: Audiologists and Speech-Language Pathologists, growing
Counseling Compact: Licensed Professional Counselors, approximately 33 states
Social Work Compact: In early implementation following 2024 to 2025 ratification

Which Major States Are Still Holdouts?

This is the question most people are actually searching for, and most compact guides bury it or skip it entirely. Here is what you need to know about notable non-member states as of early 2026.

For IMLC, historically notable non-members have included California, New York, and Florida, though membership changes frequently. California in particular has been a consistent holdout from multiple healthcare compacts. Because California represents roughly 12% of the US population, its absence from a compact is a material gap in your addressable market. If California patients are central to your growth plan, factor in that you may still need a traditional California medical board application, which takes 6 to 12 months and separate fees.

For PSYPACT, similar large-state gaps have existed at various points. Any state with its own well-established psychologist licensing board and significant in-state provider supply has historically been slower to join. Before targeting a specific state, verify its current membership status directly at the compact's official website.

For the NLC, non-member states have historically included some high-population states in the Northeast and on the West Coast. A nurse licensed in a non-compact state cannot use the multistate license and must apply individually in each target state.

Which Compact Should I Apply to First?

The answer depends on your specialty, your state of principal license, and your target market. Work through this decision framework before spending time and money on applications.

If you are a physician (MD/DO): IMLC is your primary tool. Apply through your SPL and identify 5 to 10 expansion states where you have demonstrated patient demand or payer relationships. Do not apply in every member state at once; maintain licenses only in states where you are actively seeing patients, since renewal fees add up.

If you are a psychologist: PSYPACT E.Passport is the clearest path for telehealth expansion. It is also the most telehealth-native compact, designed explicitly for remote practice. Apply for E.Passport first. Add IPC only if you need temporary in-person privileges.

If you are an NP or APRN: The APRN Compact is still early-stage. In 2026, your most practical path is individual state licensure in your target expansion states, potentially using your NLC-covered nurses to handle care coordination functions while you apply for APRN licenses individually. Plan for 3 to 6 months per state for individual APRN applications.

If you run a multi-specialty clinic: Prioritize the compact that covers your revenue-generating providers first. If physicians drive 80% of your revenue, IMLC comes first. If behavioral health is your core service, PSYPACT comes first. Then layer in NLC for your nursing staff, since the NLC multistate license is the easiest compact to obtain and has the broadest coverage.

If your home state is not a member: You cannot use the compact at all until you establish a State of Principal License in a member state. This is a genuine obstacle for providers licensed primarily in California or another persistent non-member. In that case, your options are to apply for a traditional license in a member state (using that as your SPL going forward), or to pursue individual state licenses until your home state joins.

Important Limitations

Compacts do not replace state law: You must still follow each state's scope of practice rules, prescribing laws, and standard of care requirements
Compacts do not cover controlled substance prescribing uniformly: DEA registration is separate and may require state-specific DEA numbers
Compacts do not eliminate malpractice coverage questions: Verify your liability insurance covers practice in every state where you intend to see patients
Compacts do not automatically enroll you in state Medicaid: Medicaid enrollment is state-specific and separate from licensure
Compacts do not override state-specific telehealth requirements: Some states require specific patient-provider relationships, in-person exams for certain conditions, or specific consent forms

The Multi-State Revenue Math

Here is what the growth opportunity actually looks like with real numbers.

Starting position: A 5-provider functional medicine practice licensed in Colorado. Colorado has approximately 5.8 million people. The practice has 800 active patients and generates $40,000/month in revenue.

After compact expansion: The practice applies for IMLC licenses in 15 target states, chosen based on existing patient inquiry volume, favorable cash-pay markets, and states without major regulatory complexity. Those 15 states represent approximately 80 million people in the aggregate.

Application costs: Compact application fees typically run $500 to $2,000 per state, depending on the compact and the state. For 15 states, budget $7,500 to $30,000 in total application fees. Add attorney time if you use legal support, typically $1,500 to $5,000 for initial setup and compliance review.

Realistic 18-month trajectory: Growing from 800 patients to 2,400 patients across 15 states is achievable for a practice that invests in marketing and has functional multi-state telehealth infrastructure. At the same per-patient revenue, that is $120,000/month, a 3x increase. That is a $960,000 annualized revenue gain against a $7,500 to $30,000 licensing investment, not counting the infrastructure and marketing costs.

What this math requires: The 3x outcome assumes the practice actually markets to patients in the new states, has telehealth infrastructure that handles multi-state patient routing, and maintains the provider capacity to handle volume growth. Licenses alone produce zero revenue; they are a prerequisite, not a growth strategy.

Malpractice Coverage: Talk to Your Carrier Before You Apply

Contact your malpractice carrier before applying for compact licenses, not after. This is not a post-licensing administrative task; it affects your cost structure and potentially your coverage validity.

Some carriers charge per-state surcharges. If your carrier charges $500/year per additional state and you add 15 states, that is $7,500/year in additional malpractice premiums. Other carriers offer flat multi-state coverage at little or no additional cost. The cost difference between carriers can be $2,000 to $10,000 per year depending on your specialty, claim history, and the number of states you are adding.

Specific things to confirm with your carrier in writing: that your policy explicitly covers each state where you intend to practice, the per-state cost or flat-rate cost for multi-state coverage, whether there are any states your carrier will not cover, and whether coverage requires advance notification before you begin seeing patients in a new state.

If your current carrier's multi-state pricing is punishing, shop alternatives before you commit to a geographic expansion plan. Switching carriers mid-expansion is more disruptive than switching before you start.

CME Requirements Across 15 States: The Hidden Operational Burden

CME tracking is mentioned as a footnote in most compact guides. It should not be. For a provider licensed in 15 states, this becomes a genuine operational challenge.

Each state sets its own continuing medical education requirements independently. The variation is significant: hour minimums range from 20 to 50 hours per renewal cycle depending on the state. Required topics differ; some states mandate specific hours in opioid prescribing, pain management, or domestic violence. Renewal cycles differ, ranging from 1 to 3 years. And renewal deadlines are tied to the license issuance date in each state, not to a common annual deadline.

A provider who obtains IMLC licenses in 15 states in a single year may face 15 different CME deadlines over the next 24 months, each with different topic requirements and hour minimums. Without a systematic tracking process, license renewals will get missed. Missed renewals create gaps in licensure that create liability exposure and can trigger compact eligibility issues.

Before expanding to multiple states, build a CME tracking system. At minimum, this means a spreadsheet that captures each state license renewal date, the required hours and topics, and the completion status of current CME credits. Thimble Portal's provider credential management features can track license status by state, though CME requirement tracking in detail typically still requires a dedicated CME management platform or manual oversight.

Getting licensed in a new state does not mean you can immediately use your existing intake forms and consent documents. States have materially different requirements for telehealth consent, and the differences matter for compliance.

California requires specific informed consent language for telehealth that differs from what is required in Texas. The California consent must include a statement about the patient's right to withdraw consent at any time and information about who will have access to the patient record.

New York requires that telehealth providers be physically located in the United States at the time of the encounter. If any of your providers work remotely from abroad, this creates a compliance issue for New York patients specifically.

Florida requires written consent before the first telehealth encounter. This means your intake flow for Florida patients must include a consent step that is captured and stored before the appointment begins, not at the time of the appointment.

These are three examples from three states. Each of your expansion states will have its own requirements. Review each state's telehealth statutes before you begin seeing patients there, and configure your intake system to serve state-specific consent forms based on patient location.

Building Multi-State Telehealth Infrastructure

Most small practices fail at multi-state expansion not because of licensing, but because their telehealth infrastructure was built for a single state. Getting licenses in 20 states and then realizing your checkout cannot route patients by state is a painful and expensive mistake.

Patient state verification at checkout: Your intake must capture the patient's current physical location, not just their mailing address. A patient who lives in Colorado but is visiting Texas when they see a provider must be routed to a provider licensed in Texas.
Provider-to-state routing: Your platform must match patients to providers who are licensed in the patient's state. This is not just a nice-to-have; practicing without a license in a state is a serious regulatory violation.
State-specific intake forms: Consent language, disclosure requirements, and required information vary by state. Your intake system needs to serve the right form for each patient's state.
License status tracking by provider by state: You need to know, in real time, which providers are licensed in which states, and you need to remove expired licenses from routing automatically.
CME and renewal deadline tracking: As covered above, each state license has its own renewal timeline. Build a tracking system before you scale.
State-specific analytics: Financial and operational reporting by state lets you identify which markets are growing, which have the best unit economics, and where to prioritize future licensing investment.

How to Sequence Your Compact Expansion

Step 1: Map Your Expansion Targets

Do not enroll in every compact state at once. Identify 5 to 10 target states where you have existing patient inquiry volume, favorable reimbursement environments, or strategic market reasons to expand. Prioritize states where your compact covers the most provider types you employ, so a single compact application unlocks as much capacity as possible.

Step 2: Verify Eligibility Before Applying

Confirm your current state is a compact member and is eligible to serve as your State of Principal License
Confirm your license is in good standing. Compacts require clean disciplinary records; a past complaint may disqualify you or require additional review.
Confirm your specialty is covered by the compact in the target states
Confirm your malpractice carrier will cover you in the target states at an acceptable cost

Step 3: Apply Through the Compact

Most compact applications take 2 to 6 weeks. Factor this into your launch timeline. You will need proof of current licensure, a clean disciplinary record, background check completion, and specialty-specific certifications where applicable. IMLC expedited licenses often come through within 1 to 3 weeks. PSYPACT E.Passport typically takes 4 to 6 weeks.

Step 4: Configure Infrastructure Before Accepting Patients

Before you market to patients in a new state, confirm that your telehealth platform has state-specific consent forms configured, your provider routing is set up correctly, and your malpractice carrier has confirmed coverage in writing. Starting patient acquisition before infrastructure is ready creates compliance exposure.

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Frequently Asked Questions

What is the Interstate Medical Licensure Compact (IMLC) and how does it work?: The IMLC is an agreement among approximately 42 states plus DC and Guam that provides an expedited pathway for physicians to obtain licenses in multiple participating states. You apply through your State of Principal License (where you hold your primary license and spend most of your professional time). Once your application is verified, which typically takes 2 to 4 weeks, you can apply for expedited licenses in other IMLC member states, often receiving them within 1 to 3 weeks per state. You still hold individual state licenses, but the application burden is dramatically reduced compared to applying to each state medical board independently. Fees vary by state but typically run $500 to $2,000 per state. Verify current member states at imlcc.org before making decisions, as the list changes.
Does PSYPACT allow me to see patients in all member states immediately?: PSYPACT authorizes licensed psychologists to practice telepsychology in all member states under a single credential called the E.Passport. You do not need individual state licenses in member states; the E.Passport serves as your practice authorization. The application typically takes 4 to 6 weeks. You must maintain your primary state license in good standing at all times, and you must follow each member state's scope-of-practice rules, which can vary. If you want to practice temporarily in person in a member state (not just via telehealth), you apply separately for an IPC credential. Verify current member states at psypact.org before making decisions.
Can I prescribe controlled substances across state lines through a compact?: Compacts streamline state licensing but do not affect DEA registration or state-specific controlled substance laws. For controlled substance prescribing via telehealth, you still need to comply with the Ryan Haight Act and its exceptions, maintain appropriate DEA registrations (which may include state-specific DEA numbers in some states), and follow each state's prescribing rules. Some states have additional requirements for remote prescribing of controlled substances that go beyond federal law. See our guide to the Ryan Haight Act for a full breakdown of the current federal telehealth prescribing rules.
How much will malpractice insurance cost when I expand to multiple states?: This varies significantly by carrier. Some carriers charge per-state surcharges that can range from $200 to $1,000 per state per year. Others offer flat multi-state coverage at minimal additional cost. For a practice adding 15 states, the annual difference between an expensive per-state carrier and a flat-rate carrier can be $3,000 to $15,000. Contact your carrier before you apply for compact licenses, ask specifically about per-state costs, and get coverage confirmation in writing for each state before you begin seeing patients there. If your carrier's pricing is not competitive, shop alternatives before you commit to an expansion plan.
How do I track CME requirements when I am licensed in 15 states?: Manually, until you build a system. Each state sets its own CME hour requirements, topic mandates, and renewal cycles independently. A provider licensed in 15 states may face 15 different renewal deadlines over 24 months, each with different requirements. Start by building a tracking spreadsheet that captures each state license number, renewal date, required hours and topics, and current completion status. Several CME management platforms offer state-specific requirement tracking. Thimble Portal tracks license status and expiration dates by state. Missed renewals create licensure gaps that create liability exposure and can affect your compact eligibility, so this is an operational priority, not a nice-to-have.

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