# EDGAR Filing Document

**Accession Number:** 0002034406
**File Stem:** 0001213900-25-120210
**Filing Date:** 2025-12
**Character Count:** 5758
**Document Hash:** 5eac222be89b52827786c86ab7208bdc
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-25-120210.hdr.sgml**: 20260625

**ACCESSION NUMBER**: 0001213900-25-120210

**CONFORMED SUBMISSION TYPE**: CORRESP

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20251210

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Tortoise Capital Series Trust
- **CENTRAL INDEX KEY:** 0002034406

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1130

**FILING VALUES:**
- **FORM TYPE:** CORRESP

**BUSINESS ADDRESS:**
- **STREET 1:** 6363 COLLEGE BOULEVARD
- **STREET 2:** SUITE 100A
- **CITY:** OVERLAND PARK
- **STATE:** KS
- **ZIP:** 66211
- **BUSINESS PHONE:** 866-362-9331

**MAIL ADDRESS:**
- **STREET 1:** 6363 COLLEGE BOULEVARD
- **STREET 2:** SUITE 100A
- **CITY:** OVERLAND PARK
- **STATE:** KS
- **ZIP:** 66211

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| ![](image_001.jpg)<br>December 10, 2025 | Chicago<br> New York<br> Washington, DC<br> London<br> San Francisco<br> Los Angeles<br> Singapore<br> Dallas<br> Miami<br> vedderprice.com<br>Deborah Bielicke Eades<br> Shareholder<br> +1 312 609 7661<br> deades@vedderprice.com  |

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**<u>VIA EDGAR</u>**

U.S. Securities and Exchange Commission<br> Division of Investment Management<br> 100 F Street NE<br> Washington, D.C. 20549

Attn: Ms. Eileen Smiley

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| Re: | **Tortoise Capital Series Trust (the "Registrant")<br> Post-Effective Amendment No. 20 to Registration Statement on Form N-1A<br> (Tortoise Nuclear Renaissance ETF)<br> File No. 333-281744** |

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To the Commission:

On behalf of the Registrant, this letter is in response to the comments provided by the staff of the U.S. Securities and Exchange Commission to Vedder Price P.C. on December 9, 2025 and December 10, 2025 with respect to Post-Effective Amendment No. 20 to the Registration Statement on Form N-1A filed on September 26, 2025 ("PEA No. 20") for Tortoise Nuclear Renaissance ETF (the "Fund"), a series of the Registrant. Any capitalized terms used but not defined herein have the same meanings as given to them in PEA No. 20.

1.  **<u>Comment</u>** : With respect to the 80% Policy, please revise the policy to more clearly show a
meaningful nexus between portfolio companies and the focus suggested by the name.

**<u>Response</u>**: The Registrant has revised the 80% policy as set forth in Exhibit A.

2.  **<u>Comment:</u>** Please describe how the Registrant determines that a company has primary business
operations in Nuclear Industries.

**<u>Response:</u>** The Registrant has added the following sentence to the Item 9 disclosure:

A business operation generally will be considered a primary activity of the company if the company holds itself out as primarily engaging in that activity, has a majority of assets dedicated to that activity or has announced a strategic focus on that activity.

222 North LaSalle Street \| Chicago, Illinois 60601 \| T +1 312 609 7500 \| F +1 312 609 5005

Vedder Price P.C. is affiliated with Vedder Price LLP, which operates in England and Wales, Vedder Price (CA), LLP, which operates in California, Vedder Price Pte. Ltd., which operates in Singapore and Vedder Price (FL), LLP which operates in Florida.

U.S. Securities and Exchange Commission

December 10, 2025

Please contact the undersigned at 312-609-7661 or <u>deades@vedderprice.com</u> if you have any questions.

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| Very truly yours, |
| /s/ Deborah Bielicke Eades |
| &nbsp;&nbsp;&nbsp;&nbsp;Deborah Bielicke Eades, Shareholder |

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U.S. Securities and Exchange Commission

December 10, 2025

**Exhibit A**

The Fund seeks to achieve its objective by investing in companies across the nuclear energy value chain. The Adviser believes that the global focus on decarbonization and energy security will result in a resurgence in the growth of the nuclear energy and technology sector. The Fund seeks to invest in companies that the Adviser believes will benefit from the resurgence in the growth of the nuclear energy and technology sector.

Under normal circumstances, the Fund will invest at least 80% of its total assets (including assets obtained through borrowings for investment purposes) in securities of (i) companies that the Adviser believes are expected to derive at least 50% of their revenues from activities in Nuclear Industries; (ii) companies that have primary business operations in the business activities associated with the Nuclear Industries but that do not currently generate net revenues; and (iii) companies with less than 50% of revenues currently derived from activities in the Nuclear Industries but that have publicly disclosed nuclear energy as a strategic focus area and are committing significant capital expenditures (more than 20%) to activities in the Nuclear Industries. "Nuclear Industries" include (i) uranium mining and milling, (ii) reactor design and construction, and/or (iii) operation and maintenance of nuclear reactors. The uranium mining and milling industry covers the entire upstream fuel-supply chain from extracting uranium ore to delivering finished reactor fuel assemblies. The reactor design and construction industry includes companies that engineer, design and build nuclear reactor technologies and intellectual property, manufacture large-scale components for nuclear reactors (like pressure vessels and steam generators), and companies that manage end-to-end project delivery including engineering, procurement of specialist equipment, and onsite construction. The operation and maintenance industry includes companies that own and operate nuclear reactors day-to-day, as well as the service companies that supply spare parts, handle refueling outages, perform inspections, and carry out upgrades and long-term maintenance.