​​Which departments should be contacted for approval? ​ ​
For owners who apply for outdoor LED screens for the first time, 80% of them will be confused by the complicated approval process. Just like novice drivers can't tell the difference between accelerator and brake, many people hit the wall everywhere with materials. According to industry data,​ ​92% of installation delays are stuck in the approval process​​。

Let’s take a real case: the curved advertising screen installed in a commercial building last year was required to be demolished and rebuilt after completion due to omission of urban planning approval. In fact, the complete approval process involves four core departments:

1. ​​Planning Bureau​ ​: Review the matching of screen size, installation location and urban style
2. ​​Construction Bureau​ ​:Assess the structural safety and environmental impact of the screen
3. ​​law enforcement bureau​ ​: Verify installation process compliance
4. ​​Industry and Commerce Bureau​ ​: Apply for outdoor advertising business license

Under special circumstances, approval from the Transportation Bureau (when the screen area exceeds 200 square meters) and registration with the Public Security Bureau (projects near transportation hubs) are required.

​​Comparison table of application materials list​​

​​Avoid these misunderstandings in material preparation​​
• The site agreement must clearly indicate "the installation of LED displays is allowed", and ordinary lease contracts may be rejected.
• Structural drawings need to include​ ​Aluminum magnesium zinc box​ ​Load-bearing data, experience shows that 30% of applicants miss this item
• Brightness adjustment plan should be noted​ ​Low brightness and high gray technology​ ​Parameters (≥1920Hz refresh rate, 18bit color depth)
• The renderings must include both day and night display modes to simulate the actual light environment.

Here’s a little trivia: Submit​ ​Whole process quality inspection report​ ​(Including 72-hour high-temperature aging test) can increase the approval rate by 40%.

​​Special Project Application Tips​​
Things to note about transparent window screen projects:

1. supply​ ​86% permeability​ ​Test certificate to avoid affecting building lighting acceptance
2. Submit an anti-glare solution (it is recommended to use an intelligent dimming system)
3. Reserved double-layer maintenance channel drawings

Sports fence screen needs to be supplemented:
• Impact resistance test report (refer to IP65 standard)
• Race mode fast switching solution (response speed ≤ 0.5ms)
• Emergency plan (sudden power outage data protection function)

​​Three secrets to speed up approval​​

1. Start the process 30 days in advance (industrial and commercial registration requires a pre-review period)
2. Materials used for binding​ ​blue-white-yellow​ ​Three-color separation (corresponding to basic/technical/special files)
3. Electronic files are uploaded to the government system simultaneously (can shorten 3-5 working days)

Recently there was a Tokyo project, which was pre-submitted​ ​3D simulation installation video​ ​, compressing the approval cycle from 45 days to 18 days. This method is particularly suitable for special-shaped screen project applications.

Working on approvals is like putting together Lego. Modular preparation can get twice the result with half the effort. The next time you apply, remember to organize the materials according to the three-layer structure of "basic qualifications + technical solutions + scene adaptation" to save you three unnecessary trips. By the way, don't believe the nonsense of "install first and then renew the certificate" - there was a case in Seoul last year where the cost of renewing the certificate was twice as expensive as building a new one!

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