Derek B. KalbfleischAssociateK&L Gates LLPWebsitewww.klgates.comOrganization ProfileFull ProfileConnectEmail+1.206.370.7644 Professional Biography Derek Kalbfleisch is an associate in the firm’s Seattle office. He is a member of the Environment, Land, and Natural Resources practice group. This is a temporary biography. A complete biography will be available soon. More Legal and Business Bylines From Derek B. Kalbfleisch Fanning the Flames: Second Circuit Splits With Ninth Circuit on Federal Preemption of Natural Gas Restrictions - (Posted On Wednesday, July 15, 2026) Heat Check: Federal Courts Weigh in on Natural Gas Appliance Restrictions - (Posted On Wednesday, April 01, 2026) California Climate Disclosure Regulations Update- CARB Provides Additional Clarifications on Implementation and Ninth Circuit Stay of SB 261 Enforcement - (Posted On Monday, December 08, 2025) Permitting Reform Ahead: EPA Targets Preconstruction Rules and Retires Reactivation Policy - (Posted On Monday, September 29, 2025) Cultural Capital: Ninth Circuit Clarifies Extent of Natural Resource Damages Under CERCLA - (Posted On Monday, September 22, 2025) Companies Must Prepare for Complying with California's Climate Disclosure Laws Even Though California Air Resources Board Regulations Are Not Final - (Posted On Friday, August 29, 2025) Department of the Interior Issues Flurry of Actions Targeting Wind and Solar Energy Projects - (Posted On Monday, August 25, 2025) More Federal Agencies Streamline NEPA Procedures to Expedite Review and Permitting - (Posted On Tuesday, August 05, 2025) From New York to Washington, Courts Shift the Landscape on Legality of State and Local Gas Bans - (Posted On Monday, April 07, 2025) Natural Gas Survives Election, Aims to Thrive Post-Election - (Posted On Tuesday, November 19, 2024) Pagination Page 1 Next page Next › Current Legal Analysis DHS Expands E-Verify Status Change Report and Substantive I-9 Violations by: Anita M. Sorensen EPA Seeks Comment on Draft Settlement Agreement Resolving Unreasonable Delay Claim Regarding NRDC’s Petition to Revoke Tolerances for Neonicotinoid Pesticides by: Richard J. Fehir, Ph.D. , Heather F. Collins EPA Announces Two Scientific Advances Designed to Modernize Safety Reviews of New Chemicals and Pesticides by: Lynn L. Bergeson , Carla N. Hutton Comments Due: Vermont EPR for Household Hazardous Waste Program Plan Public Comment Period Closes September 10 by: Lynn L. Bergeson , Catherina D. Narigon Trump Administration Seeks End to Tax-Exempt Status for Private Schools Offering Race-Based Support to Students by: Christopher A. Jones , Dee Spagnuolo SBA Proposal Set to Expand Small Business Eligibility by: Ariel E. Debin Collinsworth What the Midterm Elections Mean for Congressional Oversight and Investigations by: Jennifer F. Walsh , Stephen Cobb Making “Cents” of Jury Service: Illinois General Assembly Requires Pay for Certain Employees’ Civic Duty by: Zachary T. Sikora NLRB Republican Majority and Ralphs Grocery: Arbitration Confidentiality for Employers by: Keith S. Olsen , Shirley S. Lou-Magnuson NYC Updates Safe and Sick Leave Requirements by: Eric B. Sigda The GenAI Patent Surge Is Coming for Physical AI: What Autonomous Systems Companies Should Be Watching by: Christopher J. McKenna , Chethan K. Srinivasa AI-Powered Sextortion: A Growing Threat Your Workforce Needs to Know About by: Joseph J. Lazzarotti When Two Words Do Not Necessarily Do Two Jobs- Legal Doublets and Surplusage in Insurance Policies by: Andrea DeField , Alex D. Pappas Colorado Sues EarnIn, Alleging Its “Earned Wage Access” Product Is Really a High-Cost Loan by: John L. Culhane, Jr. , Alan S. Kaplinsky New Jersey Seeks Supreme Court Review of Kalshi Decision… and One Additional Argument That May Come into Play by: Dennis M.P. Ehling , Louise Bowes Marencik Upcoming Events Sep 14-16 2026 Private Wealth Management Summit by Marcus Evans Sep 17-18 2026 Chief Litigation Officer Summit by Marcus Evans Sep 17-18 2026 IP Law Summit by Marcus Evans Oct 12-13 2026 2026 Proxy Disclosure & 23rd Annual Executive Compensation Conferences Print