# Costs Law & Practice: Shaping New Developments into Solution-Focused Answers for Your Clients > Court-Proven, Solution-Focused Answers to 7 of the Thorniest Questions facing Costs Practitioners: Directly from Top-Flight Judges and Kings Counsel - Format: Hybrid - Date: Thursday, 12 March 2026, 10:00AM to 4:00PM (registration from 9:30AM) - On-demand: 19 March 2026 until 10 September 2026 - Venue: The Caledonian Club, 9 Halkin Street, London, SW1X 7DR - 5 hours CPD - Rates: On-Demand Single £199.00 + VAT per person - Status: This conference has taken place - Book: https://whitepaper.co.uk/conferences/costs26 ## Programme - Chair's Introduction: Costs litigation: Shaping new developments into solution-focused answers for your clients - Chaired by Master Colin Campbell - Mazur: What is to be done about Mazur [2025] ? What constitutes the "conduct of litigation" and what can be done by non-qualified personnel? - Answered by Roger Mallalieu KC - Bill of Costs: If the new-style Bill of Costs in Precedent S format "is not working", what are the courts expecting at detailed assessment — particularly in preparing the papers? - Answered by Senior Costs Judge Rowley - Precedent H: How will the shift from Precedent H to Precedents Z, RZ and TZ affect costs budgeting strategy, preparation and recoverability? - Answered by Alex Hutton KC - Interim payments: How has Petrofac [2025] EWCA changed existing thinking on (1) interim payment on account and (2) security for costs - and how do you advise your clients? - Answered by PJ Kirby KC - Fixed Costs: What is the latest judicial thinking on Fixed Recoverable costs, including exceptional circumstances and unreasonable behaviour, and what amendments are in the pipeline? - Answered by Andrew Roy KC - Part 36: How far can you push the court on Part 36 offers and their consequences for costs, including 90/10 offers, adequate reasons, suspension of interest, and out-of-time offers? - Answered by Judith Ayling KC - Non-Party Costs Orders: What is now deemed 'fair and just in all the circumstances' in non-party cost order cases, and how do you advise clients effectively? - Answered by Jamie Carpenter KC - New developments: What is on the horizon in costs, and how should costs lawyers be preparing? - Answered by David Marshall, Anthony Gold ## How to book Choose a rate on the [conference page](https://whitepaper.co.uk/conferences/costs26) and press Book Now. Checkout asks for the booking contact and company address, then each delegate's name and email, then payment: Credit/Debit Card, or Bank Transfer/Cheque to be sent an invoice. Bookings are subject to the [booking policy](https://whitepaper.co.uk/booking-policy).