CASS Assessors

Registration Scheme for Functional Safety Assessors

Safety requirements specification

The CASS Registered Functional Safety Assessor scheme is a registration scheme for experienced functional safety assessors who use the CASS methodology. A candidate for the scheme requires a referee and proposer to vouch for their technical capability and experience. Registration is based on a peer / panel review of the assessor’s knowledge and experience in their claimed scope and is not a personnel competence certification scheme.

How the CASS Registered Functional Safety Assessor scheme works:

 

  • Candidates provide evidence of their assessor training / experience in their particular scope which is evaluated by a panel of other qualified practitioners.
  • The CASS Scheme Association maintains and publishes a register of functional safety assessors (RFSAs) who have met the registration requirements.
  • RFSAs are permitted to use the ‘CASS Mark’ (which includes their personal ID) on their assessment reports.
  • The CASS Scheme Association does not view or accept responsibility for any assessment report.
  • Registration is optional – the existing use of the CASS methodology is unchanged (i.e. without the ‘CASS Mark’).
The CASS Registered Functional Safety Assessor Scheme Manual
ADVANTAGES OF USING CASS

The CASS Register Functional Safety Assessor scheme uses a model to consider five layers of an applicants knowledge and experience. The scheme manual defines requirements for the application and evaluation process. The applicant will require a proposer and a referee. The five layers are:

 

  • Layer-1: Basic academic and professional qualifications
  • Layer-2: Structured / formal Functional Safety (FS) training / self-learning
  • Layer-3: FS practitioner experience (specified scope)
  • Layer-4: FS assessor experience (specified scope)
  • Layer-5: Knowledge of CASS methodology
CASS Registered Assessor application form

Liability Disclaimer

The 61508 Association accepts no liability for any loss or harm caused as a result of reliance on any assessment related document that bears the CASS mark. This scheme is owned and operated by The CASS Scheme Association and this web-page is simply a display of information provided by The CASS Scheme Association.

List of registered assessors

Method Functional Safety

Dil Wetherill (RFSA ID: 21001)

Company:Method Functional Safety Ltd.

Contact:dil.wetherill@methodfs.com

Valid From:04‐Jan‐2021

Valid to:03‐Jan‐2024

Sector:Process

Status:EXPIRED (under renewal)

Assessment Scope:IEC 61511‐1:2016+A1:2017 (CASS-511-FSM, CASS-511-OP, CASS-511-FSA).

Assessment Scope:IEC 61508‐1:2010 (CASS-508-FSM, CASS-508-SLC).

ProSalus Ltd

Colin Easton (RFSA ID: 21002)

Company:ProSalus Ltd.

Contact:colin.easton@prosalus.co.uk

Valid from:14-Apr-2021

Valid to:13-Apr-2024

Sector:Process, Machinery

Status:EXPIRED (under renewal)

Assessment Scope:IEC 61511-1:2016+A1:2017 (CASS-511-FSM, CASS-511-OP, CASS-511-FSA).

Assessment Scope:IEC 61508-1:2010 (CASS-508-FSM, CASS-508-SLC).

Assessment Scope:IEC 61508-2:2010 (CASS-508-SYS, CASS-508-SUB).

Assessment Scope:IEC 61508-3:2010 (LVL only but no template).

Assessment Scope:IEC 62061:2021 (CASS-061).

UL Solutions

Hassan El Sayed (RFSA ID: 21003)

Company:UL LLC

Contact:hassan.el-sayed@ul.com

Valid from:06-Sep-2021

Valid to:05-Sep-2024

Sector:Product, Process, Machinery

Status:VALID

Assessment Scope: IEC 61508-1:2010 (CASS-508-FSM, CASS-508-SLC).

Assessment Scope:IEC 61508-2:2010 (CASS-508-SUB, CASS-508-SYS).

Assessment Scope:IEC 61508-3:2010 (CASS-508-SW, LVL but no template).

Assessment Scope:IEC 61511-1:2016+AMD1:2017 (CASS-511-FSM, CASS-511-FSA).

Assessment Scope:IEC 62061:2021 (CASS-061).

ERM

Andrew Derbyshire (RFSA ID: 23001)

Company:ERM

Contact:andrew.derbyshire@erm.com

Valid from:25-Oct-2023

Valid to:24-Oct-2026

Sector:Process

Status:VALID

Assessment Scope:IEC 61511-1:2016+AMD1:2017 (CASS-511-FSM, CASS-511-OP, CASS-511-FSA).

Assessment Scope:IEC 61508-1:2010 (CASS-508-FSM, CASS-508-SLC).

Assessment Scope:IEC 61508-2:2010 (CASS-508-SUB, CASS-508-SYS).

Assessment Scope:IEC 61508-3:2010 (LVL only but no template).

ERM

Simon Burwood (RFSA ID: 23002)

Company:ERM

Contact:simon.burwood@erm.com

Valid from:25-Oct-2023

Valid to:24-Oct-2026

Sector:Process

Status:VALID

Assessment Scope:IEC 61511-1:2016+A1:2017 (CASS-511-FSM, CASS-511-OP, CASS-511-FSA).

Assessment Scope:IEC 61508-1:2010 (CASS-508-FSM, CASS-508-SLC).

Assessment Scope:IEC 61508-2:2010 (CASS-508-SUB, CASS-508-SYS).

Assessment Scope:IEC 61508-3:2010 (LVL only but no template).

SILMETRIC Ltd

Paul Reeve (RFSA ID: 23003)

Company:Silmetric Ltd.

Contact:paul.reeve@silmetric.com

Valid From:25-Oct-2023

Valid to:24-Oct-2026

Sector:Product, Process, Machinery

Status:VALID

Assessment Scope: IEC 61508-1:2010 (CASS-508-FSM, CASS-508-SLC).

Assessment Scope: IEC 61508-2:2010 (CASS-508-SUB, CASS-508-SYS).

Assessment Scope:IEC 62061:2021 (CASS-061, except software)

Assessment Scope:IEC 61511-1:2016+A1:2017 (CASS-511-FSM, CASS-511-OP, CASS-511-FSA).