In order to account for increased transport of hazardous materials as well as the burdens such transport places on first responders, PHMSA proposes overdue updates to the registration fees under the statutorily mandated registration and fee assessment program for persons who transport, or offer for transportation, certain categories and quantities of hazardous materials. PHMSA's proposal would increase the annual fee to be paid by those registrants qualifying as a small business or not-for-profit organization by $125 to $375 and by those registrants not qualifying as a small business or not-for-profit organization by $425 to $3,000. Actions such as fee adjustments are necessary to fund PHMSA's Hazardous Materials Emergency Preparedness grants program at newly authorized levels in accordance with the Infrastructure Investment and Jobs Act (Pub. L. 117-58). PHMSA also proposes to implement an electronic-only registration fee payment process. Finally, PHMSA proposes to revise requirements to clarify that a certificate of registration may be carried in either electronic or paper form for both motor carriers and those who transport hazardous materials by vessel.