Dear Environmental Protection Department,
We are students from Hong Kong Baptist University (HKBU) taking the course GCAP3226: Empowering Citizens through Data: Participatory Policy Analysis for Hong Kong. As part of our coursework, we are requesting the following data records under the Code on Access to Information:

1. API Provision for Third-Party Apps (e.g., EV-BOY):
- Does the EPD or data.gov.hk provide official real-time availability APIs or direct data feeds to third-party charging apps such as EV-BOY?
- If yes, what are the technical frameworks? If no, are there policy guidelines requiring subsidized Charge-Point Operators (CPOs) to provide open, machine-readable APIs?

2. EHSS Withdrawal Data:
- The specific names and district locations of the 28 housing estates (representing ~5,000 parking spaces) that withdrew from the EV Charging-at-Home Subsidy Scheme (EHSS), as referenced in LegCo Paper EEB(E)088.
- The recorded reasons or categories for their withdrawal, along with overall statistics of total EHSS applications received versus approved cases.

3. Private CPO Financial and Licensing Parameters:
- Data regarding standard tendering costs, license fees, operational agreement costs, or land premium considerations required for private CPOs operating on government properties or under subsidized schemes.

4. Operational Usage and Power Telemetry:
- Hour-by-hour session counts, hourly utilization rates (specifically for peak periods like 6:00 PM – 9:00 PM), and rated power output specifications (kW per charger type) for public chargers in government car parks for September 2026.

5. Database Systems and Storage Infrastructure:
- What database management systems or platforms are used by the Department to store and manage EHSS application/withdrawal records and CPO operational/telemetry data?

If any portion of this request incurs processing fees, please advise us of the estimated cost beforehand. Thank you very much for your time and assistance.

Yours faithfully,
Ting Hoi Lam